in other words, a lot... LOL
just to start you off to drop the 4age in you will need at least the ae71 4a manual setup (gbox, engine/gbox crossmembers/mounts, tailshaft, pedal box)
whats the car used for? having done new kyb and llovel suspension, it drove really well for daily drive and smooth enough to soak up the bumps (if I would do it again id just buy second hand). but on a spirited run... look else where (but ready to spend money)