I would also carefully remove the paint (with thinner, not sand paper) from the coils where the boots go as to prevent any potential electrical path due to the carbon in the paint.
FWIW, anodizing is not typically a good idea for castings as it takes color somewhat unevenly, unless you plan to extensively smooth the surface via polishing/metal finishing first. Also, the color fades over time due to heat & UV light... we will not even get into cost.
If you want good advice, powder coating is the way to go, but it is hard to compete with 2 cans of paint for less than $20, so I think you took the correct path.
FWIW, anodizing is not typically a good idea for castings as it takes color somewhat unevenly, unless you plan to extensively smooth the surface via polishing/metal finishing first. Also, the color fades over time due to heat & UV light... we will not even get into cost.
If you want good advice, powder coating is the way to go, but it is hard to compete with 2 cans of paint for less than $20, so I think you took the correct path.