I'll be in Annapolis and at Bacon's late next week, and I'd be glad to look for you (no charge). Email me at firstname.lastname@example.org
if I can help.
Also, I got my Edson 24" and Edson 28" on eBay. There's always Edson wheels on eBay, though as the season heats up, the prices rise dramatically. I got the two above for $80-110 each, in early spring.
Also, up my way, there's two marine consignment stores I think are great. Actually, one's good, one's great. Good is Marine Consignment of Wickford (RI) and they specialize in all kinds of stuff for older boats (1960-90). They don't sell anything new and they don't respond to emails, though their site says they do. Just call 'em.
The great place is Newport Nautical in Newport, RI. You'd think Newport prices would be high, but he's the lowest of anyplace I've found. Upstairs is the new stuff, downstairs is just intense. Mr. Heaton likes to keep the stuff moving, so it's priced to sell.