Been there, done that with the cheap one part stuff. I paint for a living. I wouldn't use ANYTHING else.
One part stuff peels off, smudges off, flakes off, chips off, and sometimes risk the chance of it never drying.
I just painted the inside of a buddies highsider with interlux perfection. And honestly, I would never use that paint again either.
I mentioned it to him as an option, since he first tried doing it himself with a one part paint. Guess what happened? it never dried! Second go around, he wanted to use a two part. He went ahead and paid $100 for the kit of perfection with the one quart of spray thinner... That one kit of perfection doesn't even bring a full quart of paint. It's .66qt. So that when catalyzed, one has a quart of paint.
Now, that's cool and all if you want to spend that much money for a quart, but I can pay $135 for a quart kit of Awlgrip that ends up with two sprayable quarts of paint. Which would do a heck of a lot more than one quart would, and it's a far superior product.
Awlgrip has a better finish overall, and better protection than ANY one part paint. Deeper shine, and last WAY longer.