I have recently recently finished CR 2181. This started as an ho proto 2k NKP GP30 that I had picked up but had no need for. I replaced all of the freestanding plastic parts with metal and added the Canon and Co dynamic brake vent. Paints were a custom mix of tcp to dull the yellow a tiny bit and darken the green. It didn’t need to be too dirty since I am shooting for 1977/78.
Very nice, I see we're on similar paths! I just chipped and faded my AZL GP30 while waiting on the patch decals.