Coming from E series falcons, an engine swap in a BA was a breeze. Everything in the same familiar place, but more accessible.
Going to an AWD territory was definitely more cramped. The front diff makes getting to some stuff a little trickier, e.g. starter motor, but otherwise no big deal.
The main difference I found was that with the BA/BF, the engine can be lifted straight out. It's a tight fit with the balancer on, but it fits. There isn't enough space in the territory to do this, you need to rotate the engine to lift it out.
I've done it a few times and differently each time, but admittedly these were all non turbos. IIRC removing the exhaust manifold and one of the engine mount brackets is enough. Having an engine crane that works properly and can lift to its max height is essential.... I was caught out by this once.