They should all fit fine as they have LHD L322's with those engine options. Bellhousing to the ZF might be different and obviously ECU wiring harness.
The real hard part is wiring that shit up. Might find a diesel harness and just rewire the entire truck.
Easiest way... buy a beater one here, ship it to England, buy a nice (same color) one with a TDV8 in it and swap numbers, ship it back