It seems as though Palmer had bought the car already converted to super turbo. So MOST of the major work had been carried out already. I’m guessing by the spec, that DPUK did the work in the first place (it maybe even a DPUK numbered vehicle, with their own ID plate under the bonnet?).
I was thinking about trying to acquire a 320 petrol 124, as from what I’ve read, they have the larger diff/prop setup from factory (210mm diff over the 185mm on lesser models?). That would save major issues other than new doughnuts at least!
Gearbox wise I was thinking BMW ZF 6 speed, so thats more of the driveline taken care of!
Just getting the intercooler/rad setup, throttle cable and clutch/brake pedal assembely, oh and not forgetting brake upgrades (W163 ML430 calipers and discs supposedly bolt right on and under 17” wheels too, 343mm discs + 4pot stoppers should be adequate!)