My own 70's analog powered prog tower is #886 with a pair of rare Korg polyphonics from 1977 and 1978, a Korg PolyEnsemble P with a Korg PolyEnsemble S sitting above it on an old USS A-frame that doesn't see the stage any more. I've also been known to put an X5D on top of the Mellotron, just for fun.