Yes, let's see what the tube specs are, but it doesn't bother me too much which tubes make the frame. Most are 4130 rears anyway. It's always more about the builder, which is why experience is more important than anything, and when you are talking a big for a 29er fork (120 TA Reba)…
Curtlo's wait list is currently ~4 months, but he is good on pricing (900 no paint), not sure of specific experience
Walt is snowed under (1200)
Siren – ~2 months and 1200. He has only made 1 LT 29er frame though
Steve Stickle – 2 months 1900