What would be a good price for a decent sound editor in your opinion?
Most audio post houses - whether they are a small one-man-band shop like mine or a "Hollywood" facility - will charge by the hour, so the longer your film the more hours will be needed in audio post. I personally spend approximately six (6) hours per linear minute of film for a complete audio post (dialog edit, Foley, sound FX, and the mix/rerecording) of a basic drama. If your project is ten (10) minutes long that's 60 hours of work. At only $10/hr that's $600, and most will charge A LOT more.
Now, obviously, that's a huge portion of your budget. However, there are guys like me that offer what I call a "Fix and Mix," which is cleaning up the production sound, adding only the most essential Foley and sound FX, layback/edit of the music/score and a basic mix will cost substantially less. With luck you can find someone (relatively) local so you can sit in and educate yourself. Or you can look for an ambitious up-and-comer looking for experience who will work for really, really cheap.
I live in themiddleofnowhere, Oregon
Then maybe you should make your film somewhere else - if there's no filmmaking scene in Bend then maybe you should go to Portland. Budget six days (one for casting, two for location scouting, three for the shoot) in a really cheap motel and use people in Portland.
The big issue is that there are too many disciplines you need to know to shoot a film, and you can't learn them much less do them all; that's why you need help. And on-set is a singularly bad time for on-the-job training.
BTW, you may want to consider renting equipment rather than buying it. I don't know about cameras, etc., but Trew Audio will ship to anywhere in North America.