does anyone know what would be good to use as a floor coating in my TJ?
Previous owner used under coating and it's starting to peel in some spots.
I would love to have it Rhino lined but since I'm in Germany i haven't been able to find a dealer. I am looking for some thing rugged, rust resistant and skid proof. please let me know what you think.

Try dura bak, I used it on my utility trailer and am planning on replacing my carpet w/ it soon. They ship direct, but I don't know how much more it'd cost to ship to Germany. Try the website;

http://www.nonslipcoating.com/automotive.htm