You'll have to take the hub off to change the discs so you'll need hub nut lock washers if it's the earlier model (2 nuts?)
Clean regrease the bearings if they are still good. New hub seals if they look iffy or leaky? New drive flange gaskets, check diff oil levels as you may lose a bit.
Jack one wheel at a time and it shouldn't run out.
That's all I can think of apart from the brake pipe might end up mullered so be prepared to need to replace them.