Thank you for your feedback. I've gone through these articles before, enabled all PS features on WindowsPE, but no Hyper-V cmdlets in WindowsPE.
I've gone down the path of trying to figure out where modules are typically located. Hyper-V module is a binary type so I've copied all necessary module folders and .dll files to corresponding location on WindowsPE and was finally able to get the PowerShell cmdlets for Hyper-V on WindowsPE to show up in PowerShell console, but my excitement was short lived. While I can get to cmdlets, they are not working and now I get the following error:
The Hyper-V Management Tools could not access an expected WMI class on computer <computername>. This may indicate that the Hyper-V Platform is not installed on the computer or that the version of the Hyper-V Platform is incompatible with these management tools.
At this point I'm pretty sure this isn't supported at all. I'm still wondering though if I can somehow get it to work in "unsupported" mode.