Awesome truing stand, and its adjustable! Just recieved my wheels for my build today and nearly have most of the parts so i'll update my thread soon.
Good luck with the wheel rebuild.
Yesterday managed to transfer the hub to the new rim. Here's a clip of what the rim wobble looked like just after the transfer and then after some work.
This morning I've rechecked things again, applied more tension and rechecked again. Screw the freewheel back again. Applied some rim tape and the new tubular.