WOW, Mr Noisey that is a "kick ass" motor.
I think that your wagon is what most Disco owners aspire to having if they are up for messing about in the rough stuff!
I have just fitted a +2 suspension kit on mine and have some 265/85/16 A/T tyres to go on standard alloys, not a patch on the work you have done but it's a start for me, been battling with the water leaks from the sunroof and side windows for 2 weeks!