Sambo - I went a clutchmasters stage 3 (fx300) (
www.clutchmasters.com) and yella terra billet flywheel (not lightened, but I think it is about 20% lighter then a stock LS1). Came in at around $1000 landed, and the clutchmasters kit includes a new throwout bearing which I didnt need so onsold to lower costs a bit. Not a lot being used but the feedback on ls1tech was very good.
I did a lot of research on clutches, and opinions on all brands are many and varied. Desnt matter how good one person says a particular clutch is, youll find another who reckons its ****e and "blew up on me after 3 passes". But as you say generally Tex are supposed to be very good - just exxy.