I did it in my garage. Easy to do, easyto screw up. Buy two sets of bearings, one parctice, one for the job. Sounds expensive? Buying 2 sets? Then let the machinest do it and eat the possible cost of screwing it up.
Have the engine solidly mounted. In car is solid, but if at home, don't let it shake around easy.
Proper tool and a baby sledge hamer, have at it carefully. Learn how much power it takes to use with the hammer.
The tool should shelf algin the bearing for when you have it set up to be knocked in. Rear bearing first. Take note of the oil hole position on the bearing and in the journal. Not that they have to line up as best as possible. Also note that the bearings oil hole has only so much material on each side of the bearing. Not thickness, distance to the edge. It's not the same distance as the journal.
The bearing does not have to knocked in as far as you might thinck for the holes to line up.
If you screw up the bearings install,knockit to far in or poor alignment, the bearing is garbage and you'll need to try again. Ther a press fit.
