I want to help you avoid fees for your used R14 tires. Under the disposal laws of the state of Arizona within the following hyperlink https://www.maricopa.gov/1571/Drop-off-Location-Fees you or your tire dealer must pay the government a fee that drives up costs for you.
Well, I am here to save the day by taking off your hands 4 R14 tires and since you are in the area just drop them of Scottsdale and Tempe, Arizona.