Sorry, I'm old school. Pull the trans off the bell, and pull the bell off the motor. Drop the motor in the hole, then bolt on the bell, then put the trans in. I do that because having the bell bolted to the motor makes the motor install more difficult. The motor with the bell bolted on is a very tight fit on the under hood forward and rearward space.

The time lost fighting with both the motor and the trans, or the effort to line up the trans with the bell bolted on and trying to match the trans input shaft up with the clutch splines would take longer then just hanging the motor, bolting the motor mounts, then add the bell and then the trans. I've done 100s of these motor/manual trans swaps, separate parts bolted on has always been the fastest and easiest way to do them, for me.