[The Art Doctor]

You have enough paint to make several mistakes and start over and still come out with a good finish. Primer depends on how straight it is to start with and how straight you want it to be. Personally I prescribe to the do all you body work over bare metal and only prime once it is already straight school, and just block primer to eliminate the sanding scratches, not to level bad body work. Doing it this way you should have plenty for your next project left over. If you mix too much and don't spray it all you can put it in a glass jar store it in the freezer for a few days and it will not harden from the catalyzer and be ready to use once back to room temp. Work quickly if doing this as the working time is cumulative and you do not want it to kick off while in the gun. Still clean your gun, don't just stick it in the freezer.