I use automotive 2 component clear coat. I used to not like clear coat, however, I've changed my tune. I don't have any experience with the spray can 2K clear coat. There is no reason that it cannot be as good as the stuff that gets mixed and shot with a spray gun. I do use Dupicolor color paint on projects and have gotten good results.

Clean the frame, keep the dust down, wear a mask and a tip that I learned from a YouTube video, shoot in the morning. The bugs are lazy and they are not out of their beds yet.

You may want to practice on something first. Just to get the feel of the how fast you need to move and how wide a path you will cover.
I paint under a carport tent. So, the sides are open.