xtremeVA, I took the plunge and bought them from SloCruisers. They were a pain to install, and I still couldn't get them to seat properly. I can honestly say it was worse trying to install those damn things, than installing the tailgate. If you do tackle this yourself, make sure you put the operable glass in the door, not installed but at least sitting somewhere in there. You won't be able to put it in if the fixed glass is installed first. I found this out the hard way.
I was looking at a friends fj60 and noticed that it also has a fixed rear panel. The size is different, but the style of the weatherstrip looks the same. He has a couple of old doors and is going to give me the fixed glass seals. I thought I would experiment with a couple and see how hard it would be to cut and glue them to make one. It might be a viable alternative to the super expensive other option.