On Sat, 23 Sep 2017 12:21:31 +1000, Xeno wrote:

That movement in other than the fore and aft direction that the trans
mount adapter needs to be capable of will be of great assistance here.

This video, at time 92 seconds, says what you say, which is that the
"crankshaft and topshaft" must be aligned "along the same axis".
https://youtu.be/S5xSOy03NAg?t=92

They show that procedure of aligning the two shafts at time 409 seconds:
https://youtu.be/S5xSOy03NAg?t=409

. Tip the front down an twist the front of the transmission to the driver side
. Lower the transmission (most seem to do it by hand even when they have a jack???)

Depends on how strong/old you are.

This video, at time 62 seconds, shows a guy wrestling a Toyota transmission
up but then using a regular floor jack to hold it there (but he has to
adjust it a lot).
https://youtu.be/NcTmlO9XN1E?t=62