My trip to the Hersey swap meet last week was fruitful. I found a good amount of NOS tune up parts much cheaper than Ebay.
Most vendors there don't have their parts well organized ( to say the least). Digging through dusty boxes of Auto-lite, Mopar, Echlin , Filko, etc I have a keen appreciation for the various Auto parts catalogues
I purchased ( cheap ) on CD from our fellow member here Rich Hartung / desoto1939. Having the correct part numbers with me was great. I've had several occasions on Ebay as well were a seller had no idea what application a part was for but it was in my catalogue.
Some have photos and cross reference to other models. Very good stuff.
If you are shopping and rebuilding, give Rich a call.