I have done rear bushings with home-made tools, (miniatures of the lower control arm bushing tool I made) and I have done them with a 12 ton HF press. If your time, sweat, and knuckle skin is worth anything to you, go for the press.
The 12 ton is the minimum size you should get. 20 ton would be better. The HF press smaller than 12 ton is not tall enough to do an axle bearing. Also, the 12 ton is just BARELY strong enough to press on an axle bearing.
I don't have a decent bench or a vice, so the 12 ton press serves multiple duties in my small garage, but takes up very little floor space.
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