I say powdercoat the blower orange as well as a STB (to match angle braces. The snout of the blower gunmetal or aluminum color with some chrome valve covers from ZZP.
If your plug wires are red, then grab some red coils from Summit along with some red hose and wire covers.
I'm looking forward to spicing up the engine bay on my Bonneville, probably red,aluminum,chrome and maybe a brass or gold accent here and there. I cant see trying anything white in the engine bay cuz it wont stay that way very long.
In due time I will get the red engine dress up kit, which comes with those sleeves for radiator hoses, etc. Not going to change out the stock coil packs. Reason: I've heard they are less reliable.
PRJ Wires will be here tomorrow and I will get them on over the weekend and snap a few pics.