I have done it 2-3 times a year for the past 4 years.
KA transmissions are garbage just like KA's. They only have 1 syncro and I am lucky if I can get 2 months of good quick shifting or flat shifting out of them.
The SR bell housing directly bolts to the transmission with some wiggling, some finesse, and sometimes a hammer.
Advice:
Have the car up on a lift. Tilt motor down with scissor jack in between down pipe and frame rail. I usually replace my rear main seal while I am in there.