I don't know why I didn't see replies to this thread until 8+ months later - sorry!
I think it's Reynolds 853 steel, not Ti.
I had finished the build enough to ride it and then decided I needed a different crankset so it's in pieces again. The fork is a rebuilt Z1 BAM with Dr. Zocchi's replacement crown, Chris King Pretty and Strong headset, wheels are now Crossmax Enduros with the same Nobby Nic's pictured here. XTR M950 8 speed brifters and rear derailleur, TRP Spyke mechanical discs, Easton EA90 stem and Turvativ carbon bars (neither of which I particularly like, they were just what I had on hand). I'm collecting parts to fit a Profile Racing BMX crank with a 2X spider and bash guard now.