The scorpion has the 8 legs it deserves now. My early experiments show it's easier to carry greater weight without straining the front and back legs if there are 8 legs and not 6.
So that's now 16 of AX-12A and 8 of AX-18A servos for the legs. The arms and tail use a further 7 servos (mixed AX-18A and AX-12A).
The main 'chassis' is made from 4 black 'CM5 adapter' parts from Trossen Robotics