I have just inherited 5 massive boxes of 45s from the 1950s-1980s of all kinds of genres, but mostly pop, rock, r&b, vocal (Sinatra, etc.).
I've gone through and picked out the few that I wanted to keep. In the spirit of the holidays I'd be willing to send you whatever you are looking for at no charge - simply pay the actual postage.
Anyway just thought I'd throw out the offer to any vinyl collectors out there. Some cool stuff. Especially the label designs.
p.s. I will even clean the records before shipping ..