I'm just gathering info right now. I'll be able to get the seats in there with no trouble, but I won't be swapping back and forth. I used to have a garage and plenty of storage space, now I have one parking spot and practically no storage space that is convenient.
I might just have to try it out and see how well the stock belts fit. I'm 6'2" and about 200 lbs. so I may or may not have the same luck with the stock seat belt. The problem you're talking about with the belts is exactly what I am worried about. And I don't want to put one on the passenger side and have the belt not fit properly on the hot chick in the passenger seat either

. Safety first!
Right now I have the BK harness bar and lap belt brackets.