That's a very tidy looking vehicle, and it's good to see the controls are still all on the correct side! If you can get used to driving it RHD, you'll find it more comfortable - the foot well is wider, so the pedals are less bunched and you have more space to rest your left foot, and operating the colored transmission levers is easier.
All the advice you have been given is good, but don't worry about the GL5 spec EP90 - I used it for 15 years with no effect on the bronze phosphor bushes in my transmission - it was just the steel parts that seemed to have trouble in my box, and that was nothing to do with the oil.
LM grease is the correct lubricant for the wheel bearings, with EP90 in everything else except the engine. Don't forget to top up the steering box (the filler plug is on its top, and you can use a 1/2" drive socket extension bar and 1/2" spanner to undo it, just like the swivel filler plugs), which reminds me to remind you that the front axle swivels have their own filler plugs and do not take their oil from the main axle casing.