As far as the panels fading because of different exposure to the sun I'm not to worried. It only takes me about 10 minutes right now to switch doors but I haven't added power windows or anything so there are no cables for me to disconnect.
I have all of my new weatherstrip awaiting install, and that might make the seal good enough, that is true. But I was kind of hoping for a really good seal in case of poor weather. I live in Idaho and granted its not rainy in the summer... at all in fact. But during the winter, and especially this year, it seems like we've been getting a lot of rain.
I also would still like to be able to address the sag issues. The rig that I'm hopping to do this for will be a trail getter once a week or so but also a daily driver. I would really like the top to be able to take more abuse without the worry of hurting the fiberglass.
Then again i might just be a glutton for punishment and feel the need to start a crazy project.