Removing a V8 for conversion, what do I need to keep?

I am asking this on here as I am guessing there's some good V8 guys here. I am taking a 3.9 V8 with EFi from a D1 to go into my Manta GTE, I think for now I am going to keep the EFi as its better than the cheap Holley carb I have got and also its gassed which I may keep.

I know I need ECU & loom but are there any other bits I am going to need to get it running, immobiliser e.t.c??

Cheers in advance (not for the awkward bastards though, that cheers isn't yours, stop looking at it, its not for you!!)

Ask drivel, he will have it running in no time

You have to keep everything that Doc chucked out - coz his dint work after that ...

My EFI worked just fine when I plugged it into the battery

ECU , and immobiliser , and blipper , speed transducer, high pressure fuel pump. plus all the usual ancilleries .