I checked two dealers and the lowest price was McGrath Elmhurst Toyota. After you add them to your cart, you have to go all the way through checkout to the point you enter billing info before they tell you the final price after discounts.
With the Labor Day sale going on now you can buy them brand new and shipped to your door for $760 or so. At least that is the best price I found after searching a couple dealers. Probably hard to beat that buying used.
I emailed a popular dealer parts department about the weight of these wheels. He was able to look up the part number and claimed they weigh 34 lbs. If he’s correct that is a chunky wheel.
FN Wheels is currently developing a flow formed 17x8.5 wheel for Tacos/Tundras/4Runners. Last I talked to them, they are targeting a +42 offset, so it should sit inside the fenders by a little. They should be out in a month or two.