I'm also looking at this frame. If you're in the US DIYcarbonbikes has it, for a higher price, which may be worth the additional $100 or so for convienence and peace of mind. I emailed him and they ship from overseas, no domestic stock. Also, search CFM496, the Carbon fan model.

One point to consider for heavier riders is the tuning of the rear shock, a big part of the leverage ratio equation. I'm 220 or so kitted out and tend to weight the rear pretty well. Currently on a Phantom v2, kinda heavy but totally solid for big guys, I would have broken a carbon frame by now, judging from the scratches and scrapes. I had to revalve the Debonaire shock (it was too soft), easy with info on line, and run it around 270 psi. Nice and plush, and good support. Also, running a 36 spoke back wheel helps things feel a lot more solid.
If you're not set on a chiner, I'd look at the new Titan. If I didn't have the phantom that's what I'd spend my money on.

Been looking for this as well. Slack 66 degree front end, long TT, short stays. Made for 140-160mm forks. Rowdy enduro hardtail.
Plenty of budget alloy and crmo options, mostly from Europe. As well as the very expensive mainstream brands, SC, Spec, etc.
Any luck?