G'day Vallyboy, welcome to ausubaru! So much to do on the L!
If you're after a stock sized tyre for offroading I'm running a hancook winter tread for the snow. I'm about to get the next two tyres to complete the set of 4 - the other two were the good old toyo mud and snow I think they were, unfortunately no longer made.
As for the lift etc, I would focus on getting it on the road first, then start playing

That's what I've done over the time I've had Ruby Scoo - she's come a long way from her RWC and touch wood I'm not having to do another one!
Cheers
Bennie