I take it you are going to machine groves in to the plates to suck the oil out to the holes? do you have any drawings or have you mocked it all up? i'm interested in using a rotary engine in my build

Yeah, I'm gonna machine the grooves on both plates and also a little bit more out of the base too. Both plates were laser cut (though look a bit rough).
Here's a pic of the autocad drawing (viewed from underneath) I did just for my working out, I've plotted it out 1:1 so I can save time marking out on the plates to machine the paths, pointless doing it on a cnc as I've kept it pretty simple.
Though I may change the infeed to just a straight track :D