as someone else said, be careful about scents, those of us with allergies won't or can't come back...
for the kids, i would only make a small design wall...use batting & make shapes out of flannel, like we all had in sunday school... they can't get hurt which will make your insurance agent happy & kids will be entertained for a little while. put it where either your clerk or there parents can keep them in plain view, but not by the front door
i traveled about 55 miles round trip on wed nites for a open class where you could work on anything you wanted & the instructor was available to help you..made a lot of friends that way
make sure you find out about local shop hops & get in on that.. (that's how i found the shop i went to on wed nite!
you may want to sponser a quilt retreat. i'd love to go on one, but don't care much for the quilt police at the local guild... if i could find something like that, i would surely go.
good luck!!