Jimi, I think I have been working on a site that you might envision. For 20 years I have been a Red Sox HOF collector but have expanded to MLB HOF. I have been expanding on OCB among various other sites to put together a more detailed list of hall of fame rookies and prior cards/memorabilia. It's very time consuming and enjoyable.
Like Gary said, there's few who collect these specifically anymore, but maybe it will rebound like it did in the 80's with a little more knowledge in a centrally located site. Bill
http://www.firstyearcards.com/