Why? Isn't the whole reason you use a scripting language is that so it easily be used and edited? If you're going to this length, why not just write and obfuscate it in .NET? You'll gain a bunch features and possible speed advantages
It sounds like from the description this is for the Blue Team to gain sample data and experience in dealing with attackers that use strange powershell commands in order to hide what they're doing. So you'd use this to make sure you can guard against what others may do to you, not to make using powershell easier.