Just jam some poly diff bush inserts in if you can't be arsed pressing them out.
Rear trailing arms really should come off if you want to press in genuine jobs, but you can also just knock out the old ones (drill + hacksaw) then pop in poly ones.
The others (lateral arms etc) are 'easy enough' to remove, press out & replace with rubber. (actually, I found removing and pressing in new a c*** of a job without a shop press).
Its a lengthy process, so exxy if you get a mech to do it ($1k is not unreasonable).