JagsBch: That really sounds like an ugly paint combination, this question seems to resurface every now and then regarding color combinations, and men seem to be somewhat color blind. Ask your wife, girlfriend, sister or all three what they think of the colors. You'll probably get an honest reply.
Nothing wrong with the Atomic 4 if you can get it to run, just remember to vent before starting the engine. A diesel, even a used one would probably cost with installation as much as the boat, and won't add any value to it.
Just MHO but a boat with strange paint looses its market appeal when you plan to sell.