I'm doing it quite differently to Wally, mainly (as he loves to say! ;-)) due to the Subaru engine I'm going to use.
Using the bug trans bellhousing face as a datum, I am moving the trans 70mm forwards and 25mm up to give me a bit more ground clearance too. I'm using a short nose G50.
Started cutting....
And some more and the trans can be located, You can see I made up a temporary method of fixing the position of the rear of the transmission
Loads of space on the left hand side
Now front mounts welded in
No going back now! I wasn't happy with how much had been cut out of the right side framehorn so I decided to make up new stronger framehorns.
Central splined section now cut up and reversed and rewelded further out inside the torsion housing, this way I can use the shorter torsion bars from a swing axle car.
Skip forwards a few steps...
I'm now making up a much stronger floor, but that's another story!
Rich