The Davis Square Community

Greetings, all;

I am looking to start teaching a friend of mine historic or Renaissance fencing (think Three Musketeers or rapier and dagger fencing), but need a location within which to fence.  So I am searching for indoor spaces that can be used for this.  Our needs are:

1:  Indoor, on account of the weather
2:  High-ish ceilings, since our blades are up to 4' long and there are attacks that swing over the head
3:  Large, empty floor space (at least 14' x 15') with a smooth, rigid floor surface. 
      Wooden floors are ideal, since they have a bit of flex to them, rugs are not so good, but it depends more upon what is under them.  Concrete floors are bad, as in, makes it more likely to injure ones knees.
4:  Venue owner understands that we will be pursuing an athletic activity that is a martial art.
5:  The space is reasonably inexpensive.  Right now, there are only 2 of us.  It may grow to be as many as 4 or 5 in the future, but that is still a narrow base over which to share costs.
6:  Rooms to change into and out of athletic clothing.  Restrooms are ok.
7:  Both of us are local to Davis Square, and something close by would be nice.

I am already asking amongst the local fencing sallets, but have found their schedules to be very full already.  Also, we know about fencing in the SCA (we are refugees from their politics) and the Higgins Armory (too long of a drive for a week night, and their schedules on weekends is busy).  However, if anyone knows of any other solution, please let me know.  Thanks in advance.