As I recall (not on front of my O&M manual), the lug torque specs are 100 ft/lbs. Confirm by checking your manual.
I would not recommend using any sort of lubricant or anti-seize compounds on the studs or lugs as this would alter torque specs and binding affects of the nut-stud. If corrosion or dirt is an issue, just use a steel brush to clean them. As for the hub-rim surface contact, a steel brush cleaning and wipe down is good to do followed up with a lite coat of anti seize for future ease of removal.
Hope this helps.