Whilst V8s are great, again, you need to be careful with offroading and water....
Although you can upgrade the dizzy to suitable units - my mate has a V8 90 and you can pour a gallon of water over the engine/dizzy and it won't miss a beat.
Also with greenlaning, make sure you know where and when you can drive and don't go tearing the place up (might be teaching you to suck eggs here)