used to be a GOOD idea...however, the NEW tax laws could shut you down your first month. Then comes permits, for EVERY state/town you are in, then comes insurance riders out the wazoo.....talk to people who vendor quilt shows, they can tell you what it is like! As for the rural aspect. Man,,,I hate to say it, but I tried to vendor some shows in "rural" areas of TX, OK, and KS and did not do well at all. Rural people still expect rural prices. SO, unless you spend a fortune on advertising to the closest BIG town where the folks who work have expendable income, you will be selling your stuff for far less than you paid for it! So that means you LOSE money!
Perhaps you could find a flea market to set up a booth in. Aside from that, a 30 minute drive is NOTHING compared to some places. My sister lives in rural TX and she has to drive more than 1 hour in any direction to find a fabric store other than walmart!