Lifting your mav/patrol would be more dependent on what you want from it than anything else, im running 2 inch body and 2 inch spring, 3 1/2 inch shocks,
i have no prob running 35 BFG's but i did need to do the rear 1/4 cut to run 35 simex and not have them touching under full compression.
I have been lifting and modifying 4x4's for about 23yrs now,
With mav/patrols i have found that some need panhards at 2-3 inchs and some dont.
The best way to workout what you want to do is go and see people with them, drive a couple of lifted patrols and see what they are like off road,
Everyone reacts differently to a lifted vehicle off road, then there are the things like sways...no or off, brake lines, diff breathers, how good are your control arms bushes and more to think about.
You more than welcome to email and ask whatever you want or to meet with some of us one day and spend sometime driving some of our vehicles, we have 4 or 5 patrols at different heights and extras.
bren