Having had to do this job in the south of spain without the right tools, I held the shaft straight, one hand on the threaded splined end, the other holding the shaft, so that the cv joint wasn't folded up, and twatting the thing on an armco zed post by the side of the road. Nice ductile steel that wouldn't shatter the rezeppa bit on the end. Sort of hard to describe, not recomended, but it has worked twice fine for me. Very ghetto. :twisted:
Don't forget the plastic spacer usually supplied in the boot kit, this stops lots of annoying donking from the shaft bouncing to and fro on rough roads.