With a CF battery box there it'd be very nice Jay - heaps of space on the seatpost too.
Was invited to bring the bike inside and work in the study to fix the PR programming by SWMBO....so here are some progress pics. As you can see the torque arm attachment is proper engineering and will definitely pass factory acceptance testing lol. Have to fit new tyres and tuffy liners first - this was just to get the electrickery working for now making sure I don't grab a cable or rotate and damage a drop-out. Connections are housed in the tiny seat bag. Grips, bar ends, rack, saddle, mud guard, chain, derailleur limits, brake bleed, tyres, all pretty easy stuff.
The Presets work really nice with PAS limiting by the pot looking like it's going to be just the job. With the pot, when you turn the pas right down it defaults back to preset 1 "legal" mode with 250w PAS only, no throttle so that's a pretty useful and a gotcha at the same time.
Unloaded 90A phase current and 20A field weakening with a mid charged 36v system the unloaded speed was 55km/k and a 4.5A draw at that so my 40km/h on the flat will be very achievable. Voltage upgrade is definitely a future option - need to check how high the satiator I've got will charge to - think its 14s.... My current BBS02 commute is 550-620wH - with regen on this bike and more efficient motor I'm interested to see if that comes down or goes up.