Just to let you know: "limited budget and community service nature" is a phrase that, as a consultant, would send me running for the hills. That usually means "we're needy and clueless and cannot pay you even 10% of your normal rate". You can do what you like...but if it were me, I wouldn't tout that as a defining characteristic of my organization when I'm trying to find a quality consultant. :
Anyways, Clarence Beverage/Laura Mizrahi, Gray Haertig and Doug Vernier all immediately come to mind as engineers who do spectrum analysis with an eye towards new facilities. Google their names to find their businesses. None of them are cheap, but, you get quality work. That's the tradeoff. When I did it my rates were $50/hr, and I was one of the less expensive engineers in this business; because I was part of a firm that could assign me certain tasks at a lower rate, and keep the more knowledgeable senior engineers around to handle bigger issues, on an as-needed basis, at the higher rate (which was usually around $150-$250/hr).
More relevant to this discussion is that the FCC just opened a 2-week-long "filing window" in October of 2007 for new and major-change applications in the non-commercial band. Until they open another window, you cannot apply for a new station. The window was closed for 10 years prior to 2007, so it might be a while before they open it again. My suspicion is that the FCC will wait until all the MX'ed applications from the 2007 window are cleared up, then they'll wait another three years to give everyone a chance to build their CP's, and only THEN will open another window. That could indeed take until 2017. Or longer, or maybe shorter. Until that point, trying to plan for getting a new station is arguably a waste of money; too much could change between now and then.
If your group is hellbent on getting a license, you're better off trying to buy an existing facility or maybe an unbuilt-CP. Neither will be a cheap way to go, though. Even in these times, I've seen FM translators (~100 watts) in medium markets with depressed economies still sell on the high side of five figures.
I'd suggest browsing some brokerage sites to get a feel for things:
http://www.radiobroker.com/
http://cmsstationbrokerage.com/stations_for_sale.shtml