Well, I went through this on an 04 Jeep wrangler I looked into buying. It was a soft top, the shop owner bought an OEM hard top and was going to convert it over. Per the guy the main hassle was hooking up with the rear wiper-washer-defroster electrical. It takes an add on harness from the rear to the front (under-dash) harness. He said It also would need a diff washer tank (dual pump) 1 pump covers the winshield the 2nd the rear hatch glass which you also have to wire into the engine harness. Also, you need OEM factory under-dash switches to control them. He also had issues with the top, said it was an 03 or older so the rear electrical plug for the hatch washer/wiper stuff was "different" than the 04-06 so he gave up on the project and decided to leave it as a soft top so I passed on the deal. I beleive there are tops avail with a plain glass rear window or without the washer/wipper Defrost stuff, so you could locate one of those and it would be easier.