This is probably an exercise in stupidity but I can be thick headed.

I like the features of the 2014 ES + far more than I like my 2017 ES. I think I get a 2014 for $2k, maybe less.

I could bring my 2017 up close to the 2014 spec, but I doubt I could retrofit Climate control into my 2017 without inordinate cost and difficulty. It strikes me if I pull the entire driveline from each car, including the master computers a transplant might work?

Opinions please, if it's too difficult then the simple answer is drive my 2017 minimally and run the 2014 until it dies.

Doh. I'd be better to source a lower mileage 2014 engine than all the trouble of a different year transplant, right? What do used engines run? $500?