Mounting Tires on Newly Painted Rims

[chtr65]

Getting close to having my steel rims painted. I'm looking for the most correct way to have my new tires mounted without chipping or marking the freshly painted rims. I have been told that I should mount the tires first, then paint the rims before inflating with air. I couldn't believe someone even suggested that. Then someone else said they mount the tires on primered rims, inflated the tires , then taped them off and painted. Any suggestions from the purists that have restored these trucks. Thanks