Looks to me like the big stepper drives the large(high torque) spiral cut bevel gear of the extruder. The extruder gear looks to have a large surface like a nextruder setup. The larger the gear, the more surface area touching the filament. Looks like the rocking mechanism does use a servo, bunch of normal gears and a worm drive at the end. The lift mechanism could be a pancake style servo, but cant tell because its not clear(xray visioned lol) but the housing is shiny gray like the housing of the upper servo. Im guessing the coils just arent exposed on the lower one. You can see the tiny linear rails that the nozzles ride on
For me, the only thing left to find is the cutter/s. Or they figured out how to pull out without creating a mushroom tip(hehe) or a string and didnt need them.
Also means no large purge needed.
Also, the laser mounting flanges.
Its gonna be like a damn ironman suit. Im positive it will be $1,500 lmao mwahaha or $3,999