I know exactly where the yellow one is. I drove by it the other day. It isn't far from my office.
There are a lot of Blazers for sale on the west coast. Search on
http://www.collectorcartraderonline.com/. You'll see both of the rigs that 1970blazin posted there.
This one is listed in the little nickel - no pics though -
1971 K-5 BLAZER Custom, factory tack, air, posi, runs and drives, needs restored, $2,200 OBO. Call 360-772-2680 Vancouver, WA
Another one in the little Nickel - don't know where it is though, I think 702 is Nevada -
72 BLAZER, Body straight, some rust. Transmission needs TLC, 454 engine. TH400 transmission, 35-1050/15" rims & tires, custom convertible soft top by K-Line, also has hard top. Custom roll bar. $4000 OBO. Call Doug at 702-328-0876 or 702-896-1724