I remember years ago seeing a 3/4 scale P51 replica that was running Big block chev power. I think Rod Hadfield was involved with supplying an aluminum block for them with the full aero conversion (i.e twin plug heads etc). I thought it was an Australian built kit but I haven't been able to find it again. It was at a wings and wheels show at Ballarat air field. It sounded magic flying over with BB chev wailing through open pipes.
I'm not normally a spelling or grammar nazzi but I couldn't help but laugh at your last statement Slowy.
"Just need to become effluent to afford all this!! ..... lol"
It that the NZ spelling of "affluent" or do you mean rich as sh!t

I'll keep looking for that Aussie P51 replica info.
Cheers