Doh, Working for ford I should have known you can use the mkv box casing.
I have just rebuilt her aswell because I needed to put some new bearings in and my imput shaft oil seal was leaking.
I also splashed out on some vibra tech engine mounts to stop my exhaust ripping out my turbo bolts. So it probably ain't woth doing now. (bugger).
Cheers for the advice though mate.