Wow.. two in one day.
I'm replacing all mine as we speak. It's not all that easy for me because I've never done it, and I couldn't find any instructions. It's easy enough to pull the tape and attach to the wall. The hard part is positioning it to wipe without binding, and trimming the corners. Mistakes get expensive.
I had thought about having it done, but, I wasn't confident in the person who bid the job, and the other one didn't show up. I don't think it's a common job for any RV facility.
I'm chatting with a mfr in Canada about a few details.
"If I'm wearing long pants, I'm too far north" - 2oldman