I agree with much of what has been said in prior replies....
Stay with the non-pro line of saws for you non-pro (assumption) workers, and just add a "bigger saw" like a 290 or 310. It's all they need for anything they can handle, and yes, let the "pro" go the real big or tricker stuff.
I recently fixed up some older saws (free) for the local fire dept who headed off to the storm areas. They left them with local groups when they returned. The biggest problem they encountered was getting more chains and getting them sharpened. Much of the debris is dirty and blunts chains very quickly, particularly on the hands of the inexperienced. In addition to the required safety gear, take a LOT of chains and files. Go you one of you local saw shops, tell them what you are doing, and ask if they will donate used chains to the cause. Most shops have mountains of old chains that are perfectly good. They might even give you a break on the saw, and "teach" a little sharpening technique.