Another alternative to partnering with your lgs, if they dont see the value of it (which, is just a risk-reward calculation and completely understandable)... is either start a club or a church.
Yes. I did type church. The reasoning behind either of these is two fold; money is pooled together for the good of a group, and will generally remain in place past initial members leaving. And, you get the bonus of certain, legal protections.
If you havent watched the John Oliver video on churchs, you should. We've been talking in the local area I am in of starting the "Church of the Holy Die"... tournament fees suddenly become, 'church donations' and those donations arnt taxed allowing more money to be used for the group. But if you dont want to listen to the ravings of a mad-lad doing silly legal loopholes... convince your LGS that it is in fact, good for them.