I got a friend that has been making indestructable birfs for Toys for years. He is going to be making full 26 spline birfs and shafts for the front of a sammy in quantity. Roadless Gear is going to sell them for anywhere from $500-650 for the pair! They are going to have a lifetime warrantee against breakage. Should handle 35s with a locker, from what I understand from what the builder says, or should handle a heavier kick with 33s maybe even 35s with a locker!
If you have any questions, comments, or need more info, contact me, I'm the one leading the charge to get these done!
Let me know!