Erin -

I think the real question is where are you?

You are looking to purchase photographic chemicals locally. It is possible that you could find chemicals that are used for purposes other than photography that coincidentally are available in specialty shops in small communities (eg, there has been some discussion recently about the fact that some chlorine sequestering agents used in swimming pools are sodium thiosulfate and could be purchased and used as bulk fixer.) But I suspect that it would be mainly coincidence if you could make this work for all of the chemicals you are looking for.

So the other approach to the problem is to ask if there are any chemical supply houses in your area that sell over the counter. The probability of that being the case increases with the size of the community where you live.