Nice find. You will love it.
FWIW I just got back from MA. Left Wednesday and came back Sunday. I averaged 21MPG for the trip and it is roughly 800 miles each way and that also included a couple hundred miles driving around up there. It rode just as good as the Grand Cherokee ever did. Plus it came home loaded up with all kinds of stuff from me dad's house which never would have fit in the Grand. They got snow Wednesday and it handled it like a champ.
33's might be a little tight on a Sport S as it doesn't have the high clearance fenders the Rubicon and Mojave have. Should be fine for DD duties but if you hit some trails, they might rub a bit. I would look for some Rubi take off fenders to put on it.
Proximity door handles can be added, the wiring is there on a 2021. Go check out the threads on the Jeep Gladiator forum as many have done just that and Benny at All Mopar Parts actually put together a kit to do this.
I'll also add that if you feel the need for side steps, get the Rockslide Engineering power steps. They can act as rock sliders as well as steps. They are not cheap but IMHO, worth every penny.