OK I think I follow, so I would use washers when adjusting the hub out of the frame. Not sure I follow your footnote though, it seems like you're saying the same thing as the first line? Sorry for being dense
Cheers. I might just risk it with the spokes then. From what I understand about the tensioning/dishing process, I would know before attempting to ride on it whether the NDS spokes are critically too short, as I wouldn't be able to dish it properly without having a massive difference in tension on either side?