Didnt realize that so thanks! Here in the northeast potholes will eat a 30 series tire/wheel for breakfsast. The extra sidewall helps with no fitment issues; speedo off is no biggie to me.
Yes, each set of wheels will require their own TPMS sensors. They arent terribly expensive ($150 for 4). I like seeing the actual PSI vs the only notify you when low cheap way most vehicles go now.
I would def go to the dealer for these as they actually require a special mounting technique (reverse mount) and the wheels are prone to chipping. The charged me $180 to mount and balance stand alone wheels and tires I brought over. They tried to charge me an hour of labor for TPMS calibration...
265/35/19 in Pilot All Seasons on stock rims works well (extra 5mm sidewall) esp since you said you have the grey wheels as well. I just mounted them and they are nearly as good as the summer tire handling wise. Dont forget you'll need a new set of TPMS for the winter setup. Tire Rack sells them...