Auto>manual 1990 xjs 3.6

Hi everybody.

my zf box has failed me and as i have always wanted my 3.6 to be a manual i now want to do the manual swap instead of getting the auto box fixed.

my question is, what parts do i need?

i’ve sourced a gearbox (getrag 265), a flywheel, bellhousing, propshaft, pedal assembly.

how difficult is it to do the swap, will i need a different transmission mount, or indeed a manual ECU?

any help is much much appreciated!!!