2012 Subaru XV with dual range gearbox swap

I destroyed my clutch floating it up a hill that was too steep for the little engine to get up, so since I was in there anyway, I dropped in the 1.447:1 5sp low range box from a 2006 EJ20 liberty/legacy.
It wasn't a simple job. The gearbox did bolt straight up, but I had to source a matching ratio rear diff, and replace the XV's cable shift gearstick with a direct one.
The biggest hassle was the starter motor. The EJ20 starter is physically smaller, so the XV's starter wouldn't fit (though the bolt holes are the same). The EJ starter I got wouldn't mate with the flywheel because the starter's gear is smaller. So I disassembled them both, planning to swap gears, but the FB20's gear is also longer, so after cutting it down to size and installing it in the EJ starter, and putting it back together, it almost worked. the alignment was slightly off, so I shimmed the starter to angle it ever so slightly, and now it engages.
Lesson: If you're going to do this, use an EJ flywheel and get the starter motor, low range lever and cable, centre console and gear lever all together from the same donor car.