Parts on the way... The seat stays for 29ers, and the integrated head tubes are due to arrive ~tomorrow.
The 22.2mm ID seat tubes for the youth BMX frames are being made locally. Hopefully the new machine shop I found can be my source for quick custom parts.
I got around to making a bronze bushing main pivot that fits in the last prototype SS/FS frame. Once the weather dries out I'll see how they hold up on the trails. I also had to extend the seat tube and make a seat mast for the thing. The 11" slopestyle height was not working for trail riding