sorry for the late response, but i rarely got on here. i did it all with the help of a buddy. its cheap enough and if you mess up, just redo it. using a plastic razor blade and its pretty easy. just go slow, and you'll probably need to budget for a few extra pieces at first until you get comfortable.
I bought the 3m product on Amazon 1080 it's called. Supposed to be one of the best products. I put this on all the chrome in my 335 coverable and has held up for years. Was fairly easy to apply just put on with tape and some heat. I'd be a bit wary of eBay product only because the time it takes to apply you wouldn't want to have to do it again.
Clarifying that you have the short wheel base helps, it was unclear which wheelbase you have in your post#38. There are different part numbers for each the short wheel base and the long wheel base, this is because the rear doors are different from each other. That being said the part #'s for...
I actually looked up these part numbers just earlier this week and they are in fact still available. At one point a few months ago they were out of stock.