jim, try bikepartsusa.com. you can get a new wheel, 12g. spokes, and a shimano coaster for $40.
Wheel Master 26x2.125, Rear, B/O, C/B, H/D, Chrome Steel Wheel | BikepartsUSA
shipping's really cheap, plus they're in florida somewhere. might be close enough to pick it up.
i got a weinmann alloy wheelset, 12g. stainless spokes, shimano front and rear c/b, for 75 bucks from them, but they;re out of stock now.