So in my search for a proper BLDC spindle for my Shapeoko I found this guy:
Might make a good upgrade for a Nomad. The 600W uses ER20 collets but is limited to 3k RPM. The 104W takes ER11 collets and can go up to 10k RPM. It also seems to be a much smaller form factor than the total Nomad spindle. Figured I would share for the Nomaders out there.
What I would really like to find for the Shapeoko is a 50k RPM spindle like they have on the newest Pocket NC but BLDC (it might actually be BLDC but I cannot confirm).