Your going to open a huge can of worms asking about the covering. I used to use Mono but some years ago they changed something so sometimes it goes on well and shrinks and sometimes it doesn't? I went over to the Ultra about 9 years ago and haven't looked back, really good stuff and looks great. Paint matching is sometimes hard to find but so far that has been the only draw back I have found. Mono has more color options and paint matches but if the stuff doesn't work who cares. My own planes only get the Ultracote covering. Dosen't sag or bubble out in the hot sun either. Trick!! I cover my planes in the main color first then set them out in the heat of the day then shrink them again, I may do this a couple of times, I call it curing. Then I put on all my trims. Fuel injected FS .91?? Cool, I have never gotten to fool with one of those, that looks like fun!!