I found no evidence of paint on the frame of my 50, in fact even the bed sides under the fenders didn't look like they were painted body color. I found paint runs on the bed sides in that area.
ORIGINAL red paint runs I did paint my frame with eastwoods satin black chassis black paint. I got better results with rustiolum semi gloss thinned with acetone and sprayed with cheap HF gun.
Opinions differ here on this site as to if the frames were painted at the factory.
You stated the finish Is" Kinda a big deal" for you
If your a member of the
Vcca you can try their forum. I believe there are judges there that might be able let you know what they look for in the frame area.
Good luck and post some pics when you finish the frame.
