Fork Rebuild - CB400T

A friend of mine recently purchased an 82 400t Hawk - which I'll be doing most of the work on while converting it to a 'sort of' cafe bike (more of a race/street bike look - the Hawk's aren't really much for cafe bikes). It was a good deal and is his first bike.

The P.O. swapped out the front end from an older model because the forks from the newer bike needed to be rebuilt.
The problem is - the new bike had comstars and a disc brake - that I want, while the older front end (currently installed) has a drum brake (that is not safe at all) and spokes.

SO My problem now, is that I need to completely rebuild the forks from the newer setup... And I have never done it.
I have the springs, lowers and uppers... possibly some more stuff but I just don't know what to look for.

P.S. I have an extra set of carbs (Honda CB400T) if someone wants to trade for some good forks with the disc brake mounts.... Also 2 extra side covers from a 400T Hawk.

P.S.S. The guy is throwing a CB450 in the trash on tuesday... I want it bad (to turn in to a street tracker like eurodave on dotheton.com http://dotheton.com/index.php?topic=469.msg3302#msg3302)... He said I could take it but I have no room. I'm gonna regret this.

Hey By'