I inquired w/ them and was told they could provide comfortable seats for a 4Runner but that I'd have to provide body type and specs for the driver and passenger in order to make a specific P/N recommendations. And the side airbags and occupancy sensors would be lost.
FWIW, I received this via email recently:"Toby from scheel-mann sent over your contact info to see if we had a seat mounting solution for your 4Runner. We are actually at the end of development for this solution and looking into doing production within the next two or three months. We will reach out again once we get closer to release." Tolerance Stack | Toyota Tacoma seat brackets - https://www.tolerance-stack.com/Maybe this helps someone.