Cannondale Six5, Specialized Stumpjumper FSR & old Hard Rock
I think the only way you will get what is you want in a can is to go to a paint shop. They can prepare a can of 2K clear urethane in a spray bomb. However, If you go that route, you should simply get you primer/sealer, base & clear. If you go mixing types (urethane over lacquer, enamel.etc... ) you could have some disastrous results. If you don't want to mess with the headache, go to an auto body shop. Unless you use a catalyzed clear, you will not get a good scratch/chip resistant paint.