I don't see any problem spraying on or around brazeons, with the right equipment and/or technique. The last paint job I did was a semi-transparent finish over white primer applied (slowly) in many overlapping coats using a cheap airbrush kit set up to apply the paint very lightly. If you've never used an airbrush, you might want to look into it look into it, especially if you already have access to an air compressor. It gives you a lot more control; it's not at all like using a rattlecan. Although you can paint anything with a rattlecan and still get decent results; it takes a lot more skill and practice. You also waste more paint because the rate of flow is not controllable.