just scale your panda: Washing Machine "Salad Spinner" tek. (aka SpeedQueen Tek)
turning up gravity 1000 fold works WAY better that just removing the liquid one can push out with pressure. using vacuum will get you a little more solvent, but will evaporate the last of it, leaving that portion of the cannabinoids behind.
even if you can spin a basket in that tank, which I doubt, you won’t get it moving fast enough to be a whole lot of use. IF I’m wrong about your fabrication skills, and you’ve got the ability to actually balance a 1+ meter diameter rotor, you’ll need at least 10HP (I’m aiming at 30HP on a 800mm rotor) to spin it up to speed.