Funnily enough James, I was just about to pm you to ask! I'm mating a 380 (L suffix as per your earlier advice) to a Jag V12, and the TD5 housing is quite irregular compared to the V8 so for an easy life (!) I thought switch to the V8 one.
Whilst you've got your khaki thinking cap on, what bits would you suggest, bearing in mind that I'm not really bothered by where the gearbox/lever ends up fore and aft because nothing on this car is in the standard position anyway. The bulkhead and seat positions will be decided when the engine is in. I know I'll need the clutch lever, but would be buying a new slave and thrust bearing after checking how the clutch will work (if adaptor rings and new flywheels are needed) anyway.