Help required with VM creation for lab automation and Critique

Being a novice at creating powershellCLI scripts from scratch, I have managed to put together a script to automate the creation of virtual machines for my ESXi5.1 training lab. Some of my commands have been adapted from Luc-D's blog. A big thank you for your super blog.

I have a list of VMs which have different OS, Memory, CPU, Disk, NetworkPort, ISOPath, FloppyDrive etc.

Below is the routine i have created from having used the VMware PowerCLI help and reference along with examples from the VMware community. I would like some help with being able to optimize the code to speed up the processing because it does take quite to process, I tried using the | Out-Null but it does not seem to switch off the output. Also wanted to know how to read the parameters from a CSV file, and phase the creation of each VM by powering one after another once it has been fully configured, like remotely checking via VMTools for the existence of a file or setting on a VM before the next VM gets created sequentially - something like a vAPP configuration. I have tried the CSV but only managed to partially make it work my script is included below:
Finally, when it is time to clean up an script to check if VM is powered ON then switch OFF and delete from Inventory and Disk the VM. (I think I could manage the deletion relatively easily). Hope my request is not a big ask.

Thanks in advance.

### Connect to vSphere Host with root

$date= Get-Date

$ESXhost = Read-Host "Enter ESX Host Name or IP"

$username = Read-Host "Username"

$password = Read-Host "Password"

Connect-VIServer -Server $ESXhost -User $username -Password $password

### Create DC

$VMname = "Lab_DC"

New-VM -VMHost $ESXhost -CD -Name $VMname -MemoryMB 512 -NumCPU 1 -Version v9 -GuestId windows7Server64Guest -Floppy -Datastore LUN1 -DiskGB 15 -DiskStorageFormat Thin -Notes "$VMname AutoDeployed on $date"

Get-VM $VMname | Get-CDDrive | Set-CDDrive -ISOPath "[Host3] VMs/Lab_Local\WIN2K8R2SP1_CUST.ISO" -StartConnected $true -Confirm:$false

    $DelayValue = "5000"

    $vm = Get-VM $VMname | Get-View

    $vmConfigSpec = New-Object VMware.Vim.VirtualMachineConfigSpec

    $vmConfigSpec.BootOptions = New-Object VMware.Vim.VirtualMachineBootOptions

    $vmConfigSpec.BootOptions.BootDelay = $DelayValue

    $vmConfigSpec.flags = New-Object VMware.Vim.VirtualMachineFlagInfo

    $vmConfigSpec.flags.enableLogging = $false

    $vm.ReconfigVM_Task($vmConfigSpec)

Get-VM $VMname | Get-NetworkAdapter | Set-NetworkAdapter -NetworkName "Lab_Local" -Confirm:$False

Get-FloppyDrive -VM $VMname | Set-FloppyDrive -FloppyImagePath "[Build] Automate/BootFloppies/LAB-DC.flp" -StartConnected $true -Confirm:$false 

For the most part the above successfully creates the VM but I have about 20 VMs that I need to build/delete and the only way I can do it is by adding individual set of edited commands for each VM - this is not nice to manage, so I tried to add a foreach loop to read the VM Name and Parameters for each VM from a CSV file.

The CSV File is formatted as follows:

VMName,MemoryMB,NumCpu,Version,GuestId,Datastore,DiskGB,ISOPath,NetworkName,FloppyPath

Lab_DC,512,1,v9,windows7Server64Guest,Lun1,15,[Host3] VMs/Lab_Local\WIN2K8R2SP1_CUST.ISO,Lab_Local,[Build] Automate/BootFloppies/LAN-DC.flp

Lab_VC,2048,1,v9,windows7Server64Guest,Lun2,20,[Host3] VMs/Lab_Local\WIN2K8R2SP1_CUST.ISO,Lab_Local,[Build] Automate/BootFloppies/LAN-VC.flp

I tried to add this to "test" as below but it only seems to work partially. It fails to set the ISO path, Floppy Path and Network Port correctly - couldn't figure out how to use the BootOptions correctly so I left this out.

$VMs = Import-CSV b:\automate\servers.csv -UseCulture

New-VM -VMhost Host3 -CD -Name $VM.VMName -MemoryMB $VM.MemoryMB -NumCPU $VM.NumCPU -Version $VM.Version -GuestId $VM.GuestId -Floppy -Datastore $VM.Datastore -DiskGB $VM.DiskGB -DiskStorageFormat "Thin" -Notes "$name Auto Deployed on $date"

Get-VM $VM | Get-CDDrive | Set-CDDrive -ISOPath $VM.ISOPath -StartConnected $true -Confirm:$false

Get-VM $VM | Get-NetworkAdapter | Set-NetworkAdapter -NetworkName $VM.NetworkName -Confirm:$False

Get-FloppyDrive -VM | Set-FloppyDrive -FloppyImagePath $VM.FloppyPath -StartConnected $true -Confirm:$false

Below is the output I get from the above routine.

WARNING: The 'Description' property of VirtualMachine type is deprecated. Use the 'Notes' property instead.

WARNING: The 'HardDisks' property of VirtualMachine type is deprecated. Use 'Get-HardDisk' cmdlet instead.

WARNING: The 'NetworkAdapters' property of VirtualMachine type is deprecated. Use 'Get-NetworkAdapter' cmdlet instead.

WARNING: The 'UsbDevices' property of VritualMachine type is deprecated. Use 'Get-UsbDevice' cmdlet instead.

WARNING: The 'CDDrives' property of VitrualMachine type is deprecated. Use 'Get-CDDrive' cmdlet instead.

WARNING: The 'FloppyDrives' property of VirtualMachine type is deprecated. Use 'Get-FloppyDrive' cmdlet instead.

WARNING: The 'Host' property of VirtualMachine type is deprecated. Use the 'VMHost' property instead.

WARNING: The 'HostId' property of VirtualMachine type is deprecated. Use the 'VMHostId' property instead.

Get-FloppyDrive : Missing an argument for parameter 'VM'. Specify a parameter of type 'VMware.VimAutomation.ViCore.Type

s.V1.Inventory.VirtualMachine[]' and try again.

At b:\Automate\Various Scripts\CreateVM.ps1:48 char:20

+ Get-FloppyDrive -VM <<<<  | Set-FloppyDrive -FloppyImagePath $VM.FloppyPath -StartConnected $true -Confirm:$false

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