I believe PPG Amercoat is Ameron 235, the same as Devoe 235 Bar Rust, a super epoxy paint for metal boats. Ameron bought Devoe a while back. I believe the paint is still sold under the Devoe name as well.
This paint is very thick. The best method of applying it is sprayed with a heated fluid system. Binks and others make these. Hot water flows through a hose in hose system. Super thick paint comes out like milk. As soon as it hits the metal, it stiffens up immediately.
If you use thinner to thin the paint, there will be solvent blisters below the waterline if it is kept in the water. Above the waterline the thinner will evaporate out and reduce the gloss of the top coat.
Personally I would sandblast the boat, spray on the first coat of epoxy, then wait at least one day for the solvents to evaporate. If using a heated system, might not have to wait a day. Spray on three coats of contrasting colors, then a coat of LPU/Awlgrip/etc. Wait a day and spray on the second coat of topcoat.
Super job bent wheel, and the speed of build is very impressive.