I like your manual. That should make it a lot easier to put together when I get to that point.
One thing I spotted in the photo you have of the Roller_F + Roller_Motor_Mount at the long bolt, looks like you have 5/16″ Bolt, Fender washer, speed washer, Bearing, 2x speed washers, then plastic. The exploded view of this on thingiverse, I only see Bolt, Fender washer, speed washer, bearing & then plastic. Is this more a personal preference with the washers? Your text description for this does not mention the 2x speed washers together. Looks like 2 washers together at the plastic, but I may not be seeing that correctly.