Are those the Trail wheels you had on your old 4Runner or did you get the dealer to swap a new set on the '18 before purchase? If it's a totally new set, how did you go about negotiating that?
I'm about to pick up an '18 and was planning on picking up someone's off road take-offs, but if I can get the dealer to do it and not have to try to sell the 20's, that might be even better.
I used CL to do this. Bought a 2017 Limited with 20's and wanted 17's. Posted a CL for a trade and just swapped my wheels/tires for a set of 17's trail wheels/tires from a 2018.
Couldn't be happier. Good luck.