Owned a factory-ordered 2000 TJ Sport 5-speed for 20+ yrs until sold a few yrs ago with near immediate regrets. Within first year ownership, installed full Currie 4" suspension with upper/lower JJ control arms, 4.56 gears with ARB lockers and the usual bumpers and skids, then subsequently TeraLow 4:1 kit and BMB front brakes. I truly enjoyed that crawl ratio in combo with 33" tires, thus chose my current Rubicon 4+ months ago to achieve similar (yet without Tera's howling planetary gears), as well as Dana 44 axles, lockers, t-case and full disc brakes not available on earlier TJs. No regrets choosing a Rubicon but I would have preferred (then and now) manual vs 42RLE auto trans. But then, that's just me.
Regardless, I'm agreed with the apparent majority suggesting the OP keep what he currently has, being a low mileage nicely equipped example...