Vin codes have been brought up many times and code sheets have been posted, just have to search them up. This took about 20 minutes.. Only thing the code dosn't say is if its a long bed or short bed but what you gave does say its a fenderside which translates to a stepside.
http://67-72chevytrucks.com/vboard/s...ight=Vin+codes
2 things you can do is verify the frame vin to the cab vin, then look under the bed at the frame to see if it was at one time a long bed that was shortened, look for frame splicing and a diamond shaped backing plate on the inside of the rails.
Shortbeds weather 2 or 4wd are desirable, you have a sweet project, enjoy it.