No no no, its impossible without real good leverage while your jammed under there and can hardly move your arms let alone get a good strong push/pull.
Eiji is just very persistant, and had a very long breaker.
Dont forget to be super clean with the clutch, or it may slip.
Anyway, the hard bit is getting the box back on, that will test your patience. So be careful with the input shaft, its easy to bash it into the clutch plate or springs while trying to get it into position.
Doing the clutch up evenly takes ages too. But worth it.
Good luck, hope it goes smoothly.