I'm trying to find out correct finishes for a few engine compartment areas in a Mar 64 built U-code engine compartment. I don't recall seeing areas such as the firewall, shock towers, radiator support, etc in the online MCA Mustang Rules 54.5-66. Non-engine components seem to generally be semi-gloss. Are these areas semi-gloss? Online photos are a good mix of semi-gloss, with a near-satin appearance, and extremely shiny indicating gloss.