I don't think that you would need to pay someone to learn that profession. I know alot of the guide schools teach good things, but I feel it is another way for them to make money in the summer from kids that will end up doing something else in life because the pay is very low. The pay is fine when you are young and single, but if you ever start a family, it just won't pay the bills. Im assuming that you are a young feller just starting out, and I know that there are a lot guides that would like an extra hand and would pay you a little bit to do it. Even if it is just the crap jobs to start out, cutting firewood in camp, feeding the stock, washing dishes etc.
If you aren't going the college route, I would suggest trying to get a government/municipality job where you would have enough vacation time/holidays to go help guide in the fall. you won't get rich, but it would be fairly secure and you would have retirement, insurance, etc. The key is getting in when you are young. If you get in when you are 20, you could retire with full benefits at age 50, then go guide your butt off.
Good luck
oakbrush