I bought one of the last Tundras with a big V8. I’m not convinced double turbo charged 6 cylinders will be nearly as long lasting as a big V8 loafing along. Maybe when my Tundra dies I’ll change, but I’m retired, put under 10K a year on it, and expect it to last me until my 90s.
I did similar. Bought a Sequoia with the 5.7 V8 I plan to hold on to it until one of us is dead.