They are E 39 seats from a 2001 M5.
They fit, but the rail will hit the driveshaft tunnel and leave me a little off center from the wheel and that's annoying. So I need to find something low and narrow on the rails.
As far as the mill goes, it's a round column mill, so it loses index if I need to raise or lower more than the 4" of travel the quill has. So, no cnc for this one. BUT I found out I've got access to the two new CNC machines the mining faculty has in exchange for some other favours! I'm going to machine the pinion spacer as soon as I get some tooling.

edit:
I SHOULD ADD that the next week or two will be me organizing the shop. i'm back to fort mac this weekend, but i'm hoping to get things moving in the garage again.
That means building a rolling welding cart, complete with both welders, the plasma, the tanks, etc.... clear up some floor space! as well, build the new stand that this milling machine needs. quite possibly make it portable as well with locking casters. and then the crown on the whole thing, mounting the engine in the PV because it's about bloody time, and that lump is sitting in the middle of the garage taking up an insane amount of floor space. Then organizing my tools, clearing out some of the junk, de-greasing the floors and stuff some. anyone need any 240 parts? dual round/flathood/gt front sway bar/anything?