I was buying a tire and wheel combo (mounted and balanced) for a car that has TPMS as a standard feature. The only way I could avoid the TPMS install was to specify that a local installer would be doing that work. In that case, I doubt the tires would have been mounted and balanced for me.
Even if I was able to avoid the TPMS this time around, any visit to a shop would be a headache trying to dodge the fact that they are supposed to be installed. I also have no second vehicle to be carting around car tires and rims.
Personally I'd be fine without the TPMS altogether but having them installed will hopefully avoid a headache in the future.
Take it to a "mom n pop" shop. I have a friend that has a shop that wouldn't care if the rims had TPMS or not. There are plenty of other local shops that would be the same way.
You can put the rims and tires in the Grand Prix too. They will fit, trust me.
2011 Mitsubishi Lancer GTS - DD mode
1991 Mitsubishi 3000GT - Many mods to come