On the passenger side I think it's accessible from underneath, so not much to take out from there.
On the driver's side it's accessible from above after removing a few things but nothing major.
Don't put the transmission in Park and rely on that, it will twist the engine and make disassembly far more difficult.
The best/easiest/coolest option for pressing in new bushings is to heat the bushing "holder" in an oven up to 150*C and then the bushing will just slide in