My local paint store deals with PPG and omni paints, if you can get a polyurethane paint in a spray can it will be fuel proof all alone, no need for clear over it. But my store use's the other type of paint to put in spary cans and if exposed to direct fuel will cause a undisired effect.
Lacquer paints are almost non exsistent anymore due to the health hazards in using the stuff. It's almost all polyurethane now days, with some enamels still hanging in there.
If a person has there own small spray unit any polyurethane paints will work great, but plan on paying a little money for the paint, activator and thinner. Thats why I go with the other stuff in the can,way less cost.
You may not believe this, but I use some clear coat I get at walmart the cheapest stuff they have and right now I am out, but its in a blue can with some yellow or white writting about a buck a can. Whatever you do, don't use Krylon clear coat it says it's lacquer but glow fuels likes it really well, thinks its lunch or something.
Don't be alarmed if the clear dosen't flash over right away especially in the dead of winter like now, sometimes it may take 2 days for it to flash and get hard, while you can handle it carfully before that, it just seems to take some time to get all the oxidents out of it and flash. This could be because of the color paint didn't have a chance to fully dry also.

If possible to match the color in the Krylon brand of paint I will use that for some basic colors, Black,White ECT.Then go over with the clear.

But I will repeat myself here when you get the color on just as its dry enough to to touch hit it with 2-3 lite to med coats of the clear and let set untill it hardens. A person needs a nice clean place with no dust particals floating around if possible. Minor dust and imperfections can be removed after the clear has cured by just simply washing it in warm water, soap and a soft cloth.

I have tried ultra coat paints and have never had any luck with them at all,( must be doing something wrong, the stuff will not dry for me, nor did it match)
My LHS said he quit carrying the stuff because of all the complaints.
The lustercoat paints I have had some limited sucess with it, the missle red seems to work good and a few others I have used come out ok, but to get that mirror look to it still needs the clear over it. But then again very few of lustercoat paints actually match there covering.
Warning when painting a canopy with poly paints ,make sure to try a test piece first.
I have had it melt a canopy before.

Some of the guys are using paint from Home depot its latex and holds up to gas just fine ,but I don't know about glow fuel.