I bought an 07 toyota Sequoia and took out the 3rd row and it's been a solid utility vehicle for the last few years. That 2uz is about as bullet proof as engines get and while the mpg isn't great if your just using it for hauling cargo or people it works great. Plus there's a million billion 1st gen Sequoia and tundras out there so it should be relatively easy getting parts when you need.

I bought mine in 2024 with 135k miles and have driven it with a travel trailer hitched up most of the time up to 192k over the past two years and the only mechanical failure has been the latching mechanism on the back hatch, which is definitely the big known issue with this gen. If you do heavy hauling I think the sr5 trim comes with a transmission-cooler, mine did, which will help keep your transmission in good shape.

I got mine single owner for a bit under 10k which I felt was reasonable for how many miles I plan on getting out of it.