I agree with Macker. By the way, if you have air tools, a needle scaler is great for getting into certain areas, and make sure you have a variety of brush sizes, shapes and rigidity to get into all the areas.
I stripped mine to metal, then used POR15 Prep & Ready, then POR 15, then a Flat Black Top Coat.
"I have taken more good from alcohol than alcohol has taken from me." - Winston Churchill