So I've bought new hubs and bearings but would like to know if this is relatively straight forward DIY task or a knuckle busting pain in the arse requiring special tools like pullers etc and best left to those better equipped?
You could always pull the uprights from the car and take them to a local shop to have the hubs/bearings pressed out and the new ones pressed in...Even if the shop knows nothing about Nobles, they should be able to do the hard work for you for minimal cost.