What is the smallest size of binoculars you would take on a CO elk hunt? Also what kind of GPS would be sufficient. We are looking to make this an every other year tradition. But I do not have the money to throw at a $ 500 GPS unit or $300 to throw out at binoculars, though I would like to get the best "bang for the buck" if you know what I am saying. Thanks in advance for any advice.