From what I remember you can mix and match bell housings.

Years back my brother fitted a 5 speed type 9 to a 3 litre Capri using a V4 transit bell housing.

As far as I'm aware, over here the type 9 was never fitted to the Essex V6...

If you try and fit an Essex V6 gearbox to a BOB the input shaft might not be long enough as the when fitting a type 9 to the Essex the input shaft needs to be shortened.

Did you not get any 2.8i Granadas or Capris you could get a gearbox from out there ?