How difficult is it to swap an automatic car to a manual transmission if you are already hybridding it?

I have a 98 GSR carcass, complete, manual obviously, and am purchasing an EG hatch or coupe to swap brakes, engine, interior, and all that crap. Would it be possible to use the clutch cylinders and crap from the GSR?

I'm looking for a manual in my area but unfortunately they are in very short supply.