well, it's done! took it out last night for the first time, just to the gas station and back, and I've been riding around all morning today! I get that a project like this is never quite finished, but it's a runner and it's not going to get materially different any time soon... just bugs to work out. I need to iron out the idle and I've got some early mid throttle lumpiness, but just off idle and as soon as you get into the throttle it's niiice... I have to seal the gas cap neck a bit better and im going to put some kind of Honda badging on it.... but ya, this is the bike!
many thanks to PJ, Sonreir, Surffly and others for technical advice... if you helped me out and I forgot to mention your name I apologize, but I very much appreciated everything. and thanks to all the Do The Ton community for the support and inspiration that kept me going to get to the finish line!