I'm not sure if this is helpful, but I'd check with the guys at GAS (Galpin Auto Sports). They work on a number of different cars and sell a ton of wheel/tire packages.

You are out of luck :) I ended up getting my own tire machines for that reason. BUT you can do a lot to help, and understand that mounting a tire is a messy and difficult job to do without marking the rims somewhere. It must be clamped and you must violently stretch a tire over it and if not done carefully something will touch the edges, that being said your best bet it to tell them to be very careful and stand over the guy doing the work. Last thing I have done is BLUE TAPE the top edge (Not into the bead area) and that helps remind a the installer a bit to be careful. Other then that you are at the mercy of the installer and if they are hung over from last night. Note the Blue tape will not prevent much damage. I have had good luck at Glendale America's Tire, better then most.