I have been searching for 2 days... within 200 miles, I can't find ANYTHING that doesn't have 270k miles and has been beat to death, or the seller isn't asking a platinum price.
I asked one to send me a pic of the sticker with the RPO codes on it and she thought I was a scammer... *bang head*
Just for reference. I paid $3100 for my '99 k2500. New motor, mpfi, bb pc, disc brake conversion, true dual exhaust, new brake lines and prop valve, other stuff I am forgetting - The parts alone were around $4500. I did all labor myself, which was a lot. Many hours of rust repair/preventative maintenance, which is crappy work. So... I have around $7600 (not including labor) into a truck that has some rust, many new parts, but the trans/transfer case etc still have 220,000 miles without being rebuilt.
Not sure what you are seeing for prices, but the parts add up quickly, if you want to make one of these decent. A new 3/4 ton truck is $50,000+ though, that is how I justify it.