I used EP80/90 GL5 it's hard to say as I flushed it through as I was doing it. I would guess I used about 11 litres to do the rear axle and hubs and the front axle including flushing. I did notice my axle plugs are well rounded so that's another thing to add to the list unless Landrover ones fit.
I have some farm oil 10/30 for the engine and will get some EP80/90 GL4 for the gearbox. I'm using vapormatic oils as it's what I can get hold of.
With any luck I can take it for a trundle on Saturday.
Will.