Hi Cobbadog, looks like you have made great progress. Hooking up a tractor with a belt drive should get it running, you should have done that earlier rather than damage the shoulders.
The Hilux radiator should be fine but is probably far more cooling than is required, does the CD8 have a thermostat? You can always fit some baffles to reduce the air flow/effective cooling surface area.
Best of luck getting it running tomorrow, try not to resort to start ya bastard, engines have a bad habit of becoming addicted to it and won`t start without it.
Hoping for first smoke,
Bob