When I get some time I plan on doing some more, at the moment I have way too much going on, but I can promise I will do DR-110/TR-606 at least, and I will attempt the 909 but because of the samples (cymbals, hats) it might be tricky - kick, snare, clap, rim would be easy though, toms might be tricky.
On the monomachine, TB-303 is doable but obviously because of the limited range of the 303 it would be easy to lose the sound if tweaked too much, also it very much depends on getting the sequence right, maybe I can use the joystick mapped to limited ranges. I can also do some JP/Juno pads no problem.
Probably looking at summer though before I get the time