I've done mine and it took me all day, but I was in no rush

The hardest part for me as I was alone, was getting the gearbox back onto the engine! I had to rig up a lift in the end as I was so knackered I could not do it any other way

Best way is to do some prep work one day, like remove wheels, driveshafts etc then do the gearbox removal etc on day 2