I like the idea of the bikini top and the wind jammer... I'm just not convinces about the rear cover either. I am actually thinking about a safari top for myself; more in line with what I use my Jeep for here in FL...
Right now I have the hard top, but inthe summer, when I take it off, the sun can be hot enough to feel like you being cooked (hence the safari top idea)! And in the winter, when driving at highway speeds, the cold comes at you from the back... which is why I think the windjammer is a good idea.
Felipe