Paint Compatibility

I'm getting ready to paint my frame, engine, transmission, suspension all a gloss black with Dupont Centari Acrylic Enamel. I am sandblasting everything down to the bare metal, and the engine block has been dipped.

I have some Proform self-etching primer as well as some Dominion Sure Seal Urethane primer that I was hoping will be compatible with the Dupont paint. Any problems with this?

Also just to be sure after sandblasting I spray the etch, then the sealer, then the high fill primer, then paint? Do I have to sand during any of these steps?

Any tips would be appreciated,
Sean