Unless you do over 10k in miles a year, then the V8 is fine. over and the diesel makes sense.
the gearbox's and diffs are a bit of a weak spot. Vogue spec is the top, hse is middle and se is the base model.
Put 22s on it and ill personally set fire to it!

the standard 20s are fine.
Id buy a disco 3 V8 hse in black. and give it some off road parts. lamp guards. bullbars with spots, front+rear wince etc.
Ive seen disco 3s with the supercharged rrs wheels on. looks disgusting! fact its owned by the local drug dealers wife doesnt help either