I think I wanted to know how to do it as much as to do it. I found the way to do it through google of course, now I don't know if it is too much trouble or I'm just lazy as dirt. Anyway here is a link in case you are more ambitious than me.

Atomic Zombie's Carnage chopper bicycle: Fork extension - Instructables - DIY, How To, ride, craft

Seems to be no more than cutting the front fork and welding a tubular extension into it. Pretty straight forward to modify the fork anyway you like. I knew I should have bought that welder.