In August of 2013 on my return trip from Oshkosh via Mackinac Island and the Air Force museum in Dayton, I had a magneto failure while crossing the Mississippi river and landed in Caruthersville, MO at Dyersburg Avionics hangar.
They recommended MAGNETO ER in Bald Knob, AR. I can tell you that in 52 years of flying, I have never been more pleased with emergency services while on a trip. Magneto ER (think: Emergency Room) gave me a recent Slick right mag for my RV-6 with a 500 hr inspection and yellow tag for $400 (exchange) plus $15.00 for next day UPS to the Dyersburg Avionics hangar (who gratiously hangared my RV-6 overnignt and allowed me to do my own work in their hangar). Incidentally, I highly recommend all to get a magneto buzz box (and learn how to use it as well as how to properly time a mag after reinstallation).
Regards,
Marshall Dues
Katy, TX
RV-6 N243MD
SN 20665 1440 hrs