I am in the central part of the state and we have plenty of good deer here and i here that the southern part of the state has more big bucks.
i agree wait for the pre rut and rut. usually the last week of october through the opening day of gun season is the best for archery due to the action that you can see.
body size is average for northern deer most of the deer you see will be over 150lbs. get some topo maps of his land and do some research on the property and you should do fine. and dress warm because it is much colder here than down south