Rotors, rims, etc.
 

I have 4-prong rotors and hubs and was wondering if buying these: Front Kit Performance Drilled and Slotted Brake Rotors Powerstop Ceramic Pads | eBay : would be okay and doable, if so, what about the back hubs?? I just want to be able to fit 5-prong rims.

No, you need to do a 5 lug conversion. Expect to shell out at least $1k for the parts and a new set of wheels. It is not call 4 prong.... more like 4 lug, or 5 lug

Thanks