Lots of good advice. Hard to sort it out.
Ask Dad what is popular up that way. Id bet 30-06 or 308s are very much so.
Get a good bolt gun (Savage w/ accutrigger or TIKKA ($600)) w/ lower power scope-2-7 or 3-9.
Shoot it a bit--150 rounds or more--not cheap but you will appreciate it before the hunt is over. Save the brass and find a reloader and let him help you reload to save $$.
Several others suggested a 308. In the UP most shots will be under 150 yards unless food plot or powerlines. Lots of woods and shorter ranges are the rule.
Ask Dad what ranges are prevelant.