I have spotted one 650c Bontrager select rear wheel (make just about any offer) and the following tires

1 Vittoria Diamante pro light $30 plus ship

2 Vittoria rubino pro II folding $15 each plus ship

2 Vittoria Open corsa evo CX $30 each plus ship

1 Continental 4000 $20 plus ship

13 Continental race 650 tubes 48mm stem $3 each plus ship

8 Forza 650 tubes with 60mm stem $2.50 each plus ship

I have not spotted any race wheels in 650c