Make sure all threads, seatpost, stem and other metal-metal contacts are greased. Make sure your cables are fully greased inside the housings.
Wax is a much cleaner way of protecting exposed metal. I do the frame, exposed cable runs and bolt heads with car wax.
Fit full length fenders if possible.
Protect your lower headset race with a lizard skin (neoprene/velcro) or is you can dissassemble the fork, fit a 2" section of inner tube in place.
New hubs are often poorly greased. I prefer to pack grease in and leave no room for dirt.
Suspension forks need care and feeding too.