Whoever installed that Wings West kit should have already put that 3M tape there, because all their kits (at least the ones we get from them) come with the double-sided tape. Also, sometimes body shops that usually do insurance claims, don't always know, or have experience with aftermarket (since they are most always restoring vehicles). As far as paint, they are good to go to, but try and have the kit done at a place that does lots of kits.

As far as the noise, it couldn't be your springs, or struts, or any other suspension component? Maybe its just me, but I've never known a kit (fiberglass or urethane) to squeak, or make any noise at all when installed.