what types of primer can be used under single stage lacquer paint?

Adam, if your down to bare metal i would suggest useing a direct to metal primer. if you have access to a spray gun and compressor i would spray it with epoxy and then i think you would be able to spray your lacquer over it. You can top coat the epoxy with in the 48 hr window or you would have to sand the epoxy after the 48 hr to get good adhesion. I hope this helps..Rich