Hello- I must be one of the few persons still obtaining and building old Blue Line and American Beauty 85' streamlined passenger car kits (from the 50's). I'd like to upgrade the radio antenna masts (seven per car, on coaches, roomettes and diners). Does any manufacturer make a kit for these? For that matter, I've been painstakingly soldering together mail car pickup arms out of 0.025" music wire, per the instructions, for the RPO/baggage cars. I have seen the old Cal-Scale brass kits for pickups but I wonder if there is something else out there. Thanks in advance to any veteran modelers who could help me out. Regards- Richard W.