Do what Flyboy suggested, but add the following. In practice, start with the bottom of the wing, overlapping about 1/2 inch and then cover the top with a 1 inch overlap. This way you won't see the seam from a static stand point and it won’t want to loosen as you fly. Same for the fuse, but that really depends on the size. ALWAYS trial fit before taking off the backing from the covering. Sometimes it requires layering, but again, you must trail fit....remember the old adage, double measure and single cut!!!

As for heat, the covering should state the ideal temperature. If you’re not sure, practice, practice, practice, with some scrap wood and covering. Trust me, it’s easier to work with a practice mistake, opposed to a wing or fuse. Good luck and have fun!!!!