Thanks! The frame is the older version of the EEB with the steel side panels. The newer frames have wider side panels that are made of plastic. You can also follow my entire build here: endless-sphere.com/forums/viewtopic.php?f=3&t=95439
Regen is enabled in the firmware. It can be done on the fly and you dont need to disconnect the 3 wire connector like the sabvoton (kind of a pain) just to change settings. I just got a 7" tablet that will be the display/allow me to make changes.
I bought it from Sam at Ballarat ebikes in Australia. He's also a member of endless sphere, the link to my build is in the description. Good luck, let me know if you get one and need help. More mobipus videos to come. ballaratebikes.com/collections/controllers