Well, being that the car has such low mileage and was mostly used as a Stock-class drag car, I would bet that not only is that the original paint but that it's probably still got the original engine. Stock-class racers usually aren't nearly as hard on parts as dingle-nut kids out street-racing the hell out of their stuff. Yes, I did blow up a steel-crank 440 myself, but so much went wrong with that engine that I can really only blame myself (and my machinist, in part): Multiple mishaps during break-in, running with a far-too-lean carb for the initial few months, not fixing an oil leak for months, a detonation problem on #6 that I never really attempted to address, and very-often shifting it at nearly 7,000RPM I'm sure were all contributing factors. Even then, it still made it 28,000+ miles before it "fah down go boom" when the #6 piston finally broke.
Do you know if it's a Dana car? Which reminds me about the disc-brake conversation: the 1970 Super Track Pack automatically got you disc brakes; Steve's oddball R/T-SE was a regular Track Pack, as were all RB/Hemi four-speed cars. Part of that package included 11"x3" drums up front and 11"x2½" on the Dana. Discs could be had, though, if you ordered them separately. The Track Pack did not include the Dana on an automatic but the Super Track Pack did. All Track Pack cars were 3.54 Danas (four speed) or 3.55 8¾"s (automatic, even with the Hemi). Super Track Pack cars were all 4.10 Danas regardless of transmission.
Strangely, only one-half model year earlier you could not get disc brakes delivered new on an A12 lift-off hood Super Bee and Road Runner unless you had the dealer convert it. Like wheelcovers, they were absolutely not available on the 69½ Six Pack cars come hell, high water, or outright bribes. One should never say never with Mopars, but not a single one has ever surfaced.