Need Info on Antique Mercedes

Hi friends, I have a friend who is restoring a 1958-60 Mercedes-Benz 190. I'd like to know if anyone has any experience impressioning keys for these cars and, if so, which card for a 1200CM you would use. I've heard the the ignition uses a Taylor 66JA blank, the doors and gas flap use an Ilco HF4 or Taylor 63W or Taylor W68M, and the glove box and trunk use a Dominion HF7. Does anyone know where I can get some of these blanks? Any other info would be greatly appreciated as well. Many thanks, Greg