The more I think about it, I dont think it will be too bad. Most of the foam (if not all) goes on the top and will be removes with the top. The clear protective stuff can stay on the bronco. Im betting I can convert to hard top in less than an hour with a helper.
The side pieces include the curved part at the back that the side of the rear window clips into. That said, it would still be hooked at the top and the bottom so it can probably be done.
The install took me about 3 hours. I did it all myself without help. Not sure how long it would take to get back to the hard top but probably 2 hours. I havent had it down on the highway yet. I did drive it to work today in hard rain on the highway and it wasnt much louder than the hard top.