Jonny,mine's had a slight change of direction from the gallery story,that was quite a while and many £££s ago!

I see yours already has a V8 do you have any plans other than lowering it? (There's
loads of different ways of doing that.)
I assume it may already have a different rear axle too on account of the V8,your truck should have had a torque tube originally which don't usually work in that situation.