Cheers Adam.. would like to rock up, but the kids have Saturday booked up.
Blue slip done this morning for the engine number change. Got a laugh out of the guy at the garage doing the inspection.
Him: "you do realise you've put in a 2 litre and it used to be 2.5".
Me: "Umm, yes sir, I do realise that."
Thought I'd better post an engine bay completion photo:

RH parker was a blown bulb, typical.
All electrics good with one exception (which I discovered today). - CD stacker doesn't work.
I presume that's because the front loom doesn't carry some required signals to the left door loom where the CD stacker connects, or I've left off a plug. Simple to get to, so not a big issue.
Oh, and the cruise control is still an ongoing project when I get the time.
The high range pop out has me stumped. I pulled the IC and checked the pitch rod. Was reading about the differences in the Outback suspension for the lift, and it turns out the pitch rod is ~5mm longer - the legacy one fitted ok (there's a big slot on the transmission side, so it can accomodate a fair range of lengths) and it looked beefier so I had that fitted, but I replaced it in the vain hope this was the problem. Also snugged up the cable mounts on the transmission. There is no adjustment for cable length at the transmission end.
This seemed to improve things, but it still pops out. I've adjusted the interior cable end again, and packed the spring with a washer to provide more positive engagement. Maybe that will do the trick, as it doesn't take much weight on the lever to prevent the pop-out.