Re: TPMS sensor replacement
Along the same lines, I bought 4 alloy rims to replace the steel rims on my 2014 Tundra. The alloys didn't come with new lug nuts so I went on eBay and bought 20 of them for $69.95 (free shipping). The dealer was going to charge me almost $10 per lug nut, so OEM off eBay was the way to go.
Took the alloy rims to Discount Tire and had them dismount the four tires from them, mount the four from my steel wheels. TPMS sensors were $60 apiece as Dave can attest and out the door for $400. Had I not gotten the four alloy rims for $100, I'd be out a lot more. Also, the steel rim TPMS sensors would not fit the alloy rims. I believe its a different angle (20 degrees difference) for anyone out there who is in the seat I was in a week ago.
$100 - alloy wheels
$69.95 - lug nuts
$400 - TPMS and mount/dismount/disposal fees at Discount Tire