383 commando ..whats it worth?

heres some good info on big blocks.
i wouldnt pay $800 for a 383 unless it was for some "#s matching" car

http://440source.com/blockinfo.htm

lots of good info on there, thanks.
No matter what block/motor i get to build its going to be a slow build until i have more funds, currently all the money is going in the cutlass i have mainly cause i have it in my buddies garage, and the project must keep going to get it out of there and done, after that the duster is My next project as i help him with his project car