Take your stock triple and have the stem pressed out, then have it welded into the triple of your inverted set-up. I say 'welded' b/c the KZ stem will most likely have a smaller diameter than the inverted stem it will replace, this will require a 'sleeve' to be fitted in to shim up the difference...then weld in place. Sounds like a lot, but I've done it on two bikes and getting ready to do it on a 3rd with more to come.
It's your bike: go nuts on it!!!
BTW: International Title Service can get you a title for something like $140...they're on line, too. its.com or something. If you can't find it drop me a line and I'll give you a link. I've one titles with them several times.
-KR
PS> Post pics of your ride!