Agreed.....30-06, with the right bullet, in the right place will do fine! Just don't fall for the light, fast propaganda. Personally, I wouldn't go less tha 165 grains....even in a mono! A good premium bullet of adequate weight, will give you the option of taking a less than ideal "raking" shot!
Use the money saved, getting a pair (maybe two) of great boots, and good binoculars....if you already have a good scope. If you will be tent camping....get a good, quality sleeping bag! When I first moved out west a wise young man told me the two most important things to have when elk hunting was....good boots and a good bag. He said, " If you feet are hurting you can't hunt hard, and if you miss a few nights sleep, you will not hunt smart"! It seemed like good advice! memtb