I am Treasurer of our Guild. We pay mileage at the current IRS rate (I think it is $.50 but you can google IRS mileage rate and it will come up). We also pay for tolls.
How may students do you expect? Our teachers usually limit us to 20 per class.
Their fees are usually in the $300-$400 range, but we have paid much more for nationally recognized teachers. The students provide their own lunch or go out. We pay for the teacher's lunch.
Hope this helps.