Painting

Good thing is that an email, phone call or post on the forum and the owner will give you a detailed description for why they say no go. Some of the best customer service in the business.

Surprising that the epoxy doesn't jive with it. I figured you could shoot epoxy over oil and it would be fine.
Epoxy is really just a straight resin type primer. Generally speaking, It's main purpose, besides rust prevention, is to promote adhesion between bare metal and whatever is going over top of the epoxy. @DesertRat is doing it right. Epoxy (or any DTM) primer, then the high build.