So I'm under the impression that the trans goes in first then extractors. Prick of a job but can be done?
Can the engine, trans and extractors be removed/installed as one unit?
get some 12 point header bolts.
find someone that is stupid enough to help you.
install trans.
put front of car on jackstands.
undo the two long engine mount bolts.
put a 2 x 4 on top of a floor jack then place it under the oil pan so you can jack up the engine as necessary.
put some white grease or moly grease or anti seize on the bolt threads
get a step stool and a case of FOSTERS LAGER . . AUSTRALIAS FAVORITE BEER and procede.