Well I can't really claim to have done a lot...I just bolted the motors into the footdrives.
Truth be known, the biggest challenge was finding where I had packed away all the bolts and pieces of the footdrive!
Here's how they look bolted in...they are huge. I put them in a box since they kept tipping over.
Tomorrow I'll start mounting in the wheels and attach the drive pulleys. I also need to figure out the best way to route the wiring into the legs via the ankle.