I should give an update to this thread as I've been doing some work on the car lately!
After the oil pressure issue discussed above I decided to buy a transfer tube from Zelig on Turbobricks:
Replaces the seal with a pair of o-rings and braces the tube to the pump.
Then I sent off an adapter that I drew up to get made in China. This adapts the AW71 bell to a GM MA5 gearbox found in Rodeos/2wd Colorados
Changed to a falcon throttle body as it has an integrated 2 wire idle valve, machined it down to suit the 70mm intercooler piping I am using
Then I decided to use some more serious coils;
Hopefully they clear the bonnet!