There is a thread on here where someone with a 360 did that. Not sure how much they recovered.
I agree they are functionally equivalent and neither original, but every time a converted car goes up for sale half the questions are "does it use factory parts?" So resale on those that do (and there won't be many more as the supply is nearly gone) will be worth a bit more than those that don't. Of course it's $12k cheaper to convert with aftermarket parts from the start!