keep the seat... I would also make the cage and the rear of the cab except some sort of bikini top to keep the sun out. use the hardtop bolt holes except some kind of channel that you can bolt on. have your bikini top made w/ a rope sewed in it and then slide it into the channel like a camper's awning.....is it going to have a tailgate? it would be cool if it had a working tailgate of some sort...plus you crap wouldn't slide out.