CMP Diesel Conversions???

[BEN-RIPPINGHAM]

I've decieded that with Fuel rocketing in price here in the uk that its pretty much a pointless exercise throwing money at putting the original V8 motor back in my F60S if i want to make into a useable truck (taking it to france etc).
Therefore its going to be dieselified, but clearly the following are a priority for me with this conversion:
* As little modifying to the original truck it's self
* Needs to be able to cruise at 50+Mph
* As economical and quiet as poss' e.g. no old clunkers!

I've had various suggestions on engine/gearbox combo's that would work from bedford 330s to Toyota Landcruiser Motors? Anyone who has actually done a sucessfull conversion please let me Know.

regards

ben.