Thanks, man! The Cummins swaps are nice. There is even a company out their now that sells motor mount brackets that make it a bolt in deal. Bit expensive, but if you don't have the time/resources to fab your own mounts, it seems like the next best thing...
http://www.avalancheengineering.com/new_products.html
I've seen a couple crew cab swaps onto LWB frames. Those, with cut down beds look cool. Seems like a good people hauler option as well. There is a '83 K30 CCLB DRW with a 6.2 at a friends farm up the road that a guy left for about 8 years now... After my K10 is done, I want to try and get it sent to a friends tow yard, and send the guy a letter. Wait the needed time, then claim it.