Sequoia 2021 nightshade worth it

Hi there!!
Looking for some help/advice. I currently have and LOVE a 2013 sequoia SR5 2wd with added features like a limited. It’s been an amazing car and perfect for our family of 4. It only has 119k miles but paint is starting to chip (not covered under warranty or recall). Debating if I should repaint or get a newer one with 4x4.
thinking of buying a 2021 limited nightshade 4x4 with low miles however the radiator was replaced because the breather hose was broken (replaced with a Toyota radiator by Carmax).

-any downside to replacing the radiator at 40k miles?

-It feels smaller than my 2013. Does anyone have or know if the 2021 is smaller inside?

-is the 2021 engine the same as the 2013?

- thoughts on captain chairs in second row. We currently have a bench and love the convenience.

- any feedback on a 2021 limited nightshade would be great. Thank you!!!

 

2021 will have the 5.7
Limited will have the bench seat
Breather hose breaking off is no issue, just plastic but its part of the rad so.. whole thing has to be replaced.
May or may not have air ride, just look for the controls on the dash.

Interior "should" be the same, maybe just the updated interior looking smaller?

Nightshade is awesome, I would snag it.