Joined: Dec 2004
Posts: 12,548
Likes: 797
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed
Yes, what you really need is new spokes. I'd have probably replaced them all when the second one went. New rim and/or wheel is your option. Most bikes I've seen of that vintage can convert pretty easily to 700c -- that's 630 down to 622 mm, so the brake pads only have to adjust down 4mm.
650A? (590mm) Do you have a tire in mind? How would you handle braking?