I did the swap, albeit - it wasn't for the G5M-R/FSDE - it was with the G15M-R/KL swap. But the pieces are pretty much the same either way:
MTX
linkage
clutch pedal (I cut down my brake pedal so it wasn't getting in the way of the clutch pedal)
hydraulic circuit (Master Cylinder, line, hose, Slave Cylinder)
clutch kit
mounts
axles
I left the ATX harness in the car....didn't see a need to swap that out. Just wired into it for NSS and Reverse lights.
ECU - I left the ATX in there until it burnt up, then I got an MTX ECU for hellacheap from Probetalk.
All-in-all - I'd do it again. It wasn't hard at all, and the responsiveness is well worth it, imho.