The guy that might do this for you is Matt Lamey, I know he likes to take the Trailmasters and thin the edges a little bit to make them better cutters and I would imagine he could change out the guard and put on handles as well, but you might just as well have him create you a Custom Bowie right from the gitgo!
G2
------------------
"The Road to Hell is Paved with Good Intentions!"
Take the time to read your Bible Now, don't be left behind...