So here are the steps I have read about in this forum:
1. Remove paint with oven cleaner and cup brush on angle grinder for cast parts.
2. Sand Blast sheet metal.
3. Clean with wax and grease remover
4. Wash with phosphoric acid
5. Picklex 20 if it can"t be primed right away.Sheet metal only?
6. Surfacer to fill in small pits.
7. Epoxy Primer (how many coats?)
8. sand primer
9. Paint with PPG Omni MP 170
Am I close?