the reason I ask is that I've been think of building up a kilo tt but the 1" fork is really the only thing holding me back... I'd like to have options for straight forks or a carbon fork, both of which I'm sure the selection is limited... And thus my other question as to the tt not having a 1 1/8"...

that mutant stem is exactly what I was thinking about! Do I want to know the price? LOL!