Non-profit volunteering costs $$$

So I am the treasurer and board member of a non-profit organization that is all volunteer with a small bank account. I agreed to keep the books because it was fairly simple, where my duties were limited to balancing the check book, cutting checks, filing the annual report with the state, handling all the deposits, etc. Not what I would call heavy accounting in any way. Even though our reality is very small scale and "mom/poppish," our rhetoric is grandiose and spans internationally. We are The Northwest Korean Culture Society. We aim to bring those interested in anything pertaining to Korean culture a wealth of experiential resources as well as camaraderie among the members. Lofty, eh?

We are presently committing ourselves to bringing over 16 professional performers from the National Cultural Arts of Korea to Portland for 8 days in September. We are now solely and completely responsible for their lodging, transportation, meals, gifts and touring. And their main purpose of course would be to perform at the venues we're supposed to have lined up for them during their visit. The most important one being our annual Chusok Festival on September 30th.

I am in charge of lodging and their lunches. It's going to cost me because I know the organization's bank won't have enough funds to cover everything else. So I will probably not get reimbursed after everyone else's receipts are turned in. It's a choice I made not because we're super wealthy and can afford to, blah, blah, blah, but because it's our donation for a non-profit this year. I hope it won't break our bank. Wish me luck. Yeeesh!