The biggest problem with a commercial range is Insurance, and operational overhead. The least expensive is an outdoor range, but needs to be located far enough from any inhabited ground that there is no danger of stray rounds and no opposition to "noise". A good back stop is essential (a convenient hillside is best). Selecting members (yes, selecting as there are some you won't want as they tear things up and are dangerous). Determining what you have to charge to at least break even, and that will determine if you want to limit the number of members. Be prepared to work more than you shoot if you are the primary caretaker.
An indoor range is many times more expensive, with ventilation and backstop as well an non-penetrable sidewalls and a well insulated divider from the non-shooting area. An indoor range will literally need someone responsible on premises 100% of the time it is open, and usually more than one to monitor the shooters as well as taking appointments and shooting fee's.
Before you go too far, if possible, visit the kind of range you envision and speak to the operator and get the facts on what it takes to operate the range. I don't want to be a wet blanket, but don't go into it without all the facts. It is a major undertaking.
