Hi all
I have found this auto restorer who also makes body parts for the P1800's. He is willing to make other parts too

here is his reply to my inquiry for 140 parts

Hi Stephen;
not a problem to make them if we had patterns. I looked at photos of your car online and I do not see a problem producing these parts. THE CATCH IS: Some kind soul has to cut out and mail us some rusty samples that we can use for visual guides. They can be crappy and shot full of holes, no matter, as long as I can see the correct shapes to follow. The best 1/4 panel parts would be made using a wheel molding as a guide also. You may post this message on your enthusiast board! Thank you,
Allen Hall
Check him out and maybe he can be of help to all of us regardless of model
Steve