Since there isn't much info online about the 3GT, I figured I post some pics and measurements. Received it 3 days after ordering it so shipping is quick.
Weight: 9.5lbs
Length: 6.25"
Height: 3.5"
Width: 3.75"
Roller width: 1.5"
Roller length: 5" (excluding gears).
Drive shaft: 0.5"
This thing is a beast. Very substantial. Now I don't know for sure what the actual metals are, but I'm fairly confident that it's the same materials and quality as the other C&S mills. Probably a safe bet to say spec-wise it's close the commercial 320G only with 1.5" rollers. The crossrod holds this thing solid and seems like it will help prevent racking/twisting. The indexed adjusters are awesome, and I will measure their accuracy with some feelers when I get some time. Not sure when I'll be able to mount this thing and try it out but I'll update when I do.
I wanted to buy a mill that I would never have to replace, never have to deal with a stuck roller, never worry about having to dump a hopper, etc. Take it how you want but I feel like this thing will be unstoppable, and at the same price point as the MMG3, the Crankandstein 3GT is a no brainer...