340 and A833 install questions

So i can install this as is in photo from the bottom correct? I will drop in motor with clutch disc and preasure plate installed from the top and the trans with throwout bearing, fork, and bellhousing from the bottom ?

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Sure you can but no you shouldn't. Install the bell, then the transmission.

If you're seriously thinking of putting the clutch and PP on before installing the motor, go ahead and put the bellhousing on too.

That's a clean setup there congrats.