yeh saw your thread and commented, tbh, i have seen the hispec kits first hand along with the ksport/d2 kits and tbh if your just using it for fast road the d2 is prob gonna be ok for you, i dont like the hispec kit as tbh it doesnt seem any better than the d2 stuff... plus i hate atomic rex (currently taking them to court!!)
on the rx7 club (american site) there is some info that evo 6 (i think) calipers (brembo) fit straight on! im pretty sure you could get calipers disks pads and lines for under 400 and i would have a shed load more faith in the brembo's than anything else for similar monies... either that or get on yahoo japan auctions saw some grex calipers go for 500 the other day with new disks and pads!
Malice I know the thread you mean, they dont fit straight on, not sure if the guy ever got them finished.
I have bought hi-spec brakes before and the quailty seemed really good imo, but everyone has different views on all manufacturers.