71 chevy frame question....

[nomas]

I am Nate a newbie from Seattle and I am the proud owner of a 71 chevy fleetside longbed. It is the love of my life! But my question to anybody with an answer is this, How hard is it to cut the frame and make it a short bed? From what I have read, it is only 12" diffrence. It has a 350 with a 350 turbo and a shift kit with a 2000 stall. The rear end has stock coils. Also, how hard is it to bag the rear end? I dont like low riders, but I do want to lower it a little to give it a better stance. Thank you for any info.
-Nate