Yes its possible to do in a home workshop but it all depends on whether you have the correct kit and experience, I?ve just rebuilt my A10 without too much trouble.
As you know, replacing this bearing will involve a full engine strip which is a major job. While its apart the crank will need checking and maybe a regrind, the timing bush has to be line bored which is beyond the scope of a home workshop man unless you have the kit and experience, also, the crank big ends could need a regrind. The sludge trap will need cleaning and new plugs fitting.
The pistons, rings and bores should be checked and a rebore and new pistons could be necessary, or new rings minimum if the bores are ok.
At the head, valves and guides should be checked springs checked or replaced.
Its reasonably easy for the home mechanic do the strip and reassembly, but you will have to send the crankshaft, cases and possibly barrels out to a specialist engineer for their expertise.
You will need various pullers, a torque wrench, valve spring compressor, piston ring clamps and all the usual tools. But if you?ve never done an engine rebuild before, I would advise enlisting the help of a experience friend and doing it together.