Anyplace to get stock parts for cheap, xbox 360?

[Fluxburn]

I am trying to get a little xbox 360 repair and mod business going. So I was trying to buy systems that were broken, repair them and sell them. Thing is for some of the consoles I need extra parts, like the powersupply, or controllers to sell as a kit or people aren't going to want to buy just a raw consule, or at least nobody sells them like that on eBay.

I have access to a business license and wholesale license also.