Never Rhino liner it. That is an all but irreversible decision. I had them Rhino line my new 2000 Ram 2500. I dropped it of in the morning and they said it would be ready by noon. Called right before noon and they said they were behind, but it would be ready by 3. Called shortly after 3 and they said it wouldn't be ready until 5. Got a ride from a fellow employee over there and found them still working on it.
The day had high humidity and the tape on the end of the bed sill came loose and they got overspary on the sill visible between the TG and the bumper. They had spent 6 hours trying to get the over spray off using every chemical they had in the shop. Finally they agreed to release the truck to me and I was to take it to a body shop I had done business with and let them work it off. The body shop, had to grind it off and then prep and repaint white.
Sharp edges will gouge it (had several in my bed over the years) but will not come off easily.
If you are going to keep your Jeep until the wheels fall off and want to do it - go ahead.
If you ever, see yourself selling the Jeep to get another - don't. You will just about destroy the resale value of the Jeep. I saw a CJ-2 that had been done in red. It had faded to pink. UGLY doesn't even begin to cover it. And yes. the material will sun fade, even the basic black becomes dirty gray. When I traded the trunk in, I removed the tool box. The two spots where the tool box sat were nice pristine black. The rest was dirty gray.