I also found a truck tire place that did the removal, but I think put their newest guy on the job. The dismount wasn't pretty. The rings came back with all sorts of hammer strike dents on the edges and I wasn't happy about that. I used a hydraulic press at home to remove the damage and they came out very straight.
Once the rims and rings were sand blasted and repainted, I took them to Les Schwab's industrial tire service place and the guys there made the install look easy and the only "tool" they used was their feet/boots to reinstall the rings.
Totally worth the $$ to have someone else handle that chore.
Bryce