Looks factory to me.
Height is about right, and except for the hood and cowl, the black graphics are original. Wide-track Cherokees (like this, with fender flares) came with big tires like this. Learn more about the wide track and narrow track models, and it will be clear.
Somebody was proud of this Jeep - they polished the heck out of it. Or maybe it got a lot of direct sun, and they tried to rub out the failing paint.
1) '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps. 2) '82 J20 360/T18/NP208/3.73, KOs, 7600 GVWR 3) '75 CJ-6, 304/T15, PS, BFG KM2s, soft top 4) '95 VW Golf Sport 2000cc 2D