The AMT (ex MPC) General Lee is in fact based on the annual 69 MPC Charger 500 fastback kit; the body is wrong (fastback glass design)( the real ones had the RT tunnel back window) interior & frame details are pretty simplistic, fiting & alignment could be better, will demand extra hours to duplicate a nice replica.
Your best choice would be theMonogram/Revell ProModeler 69 Charger RT kit as a starting point, the kit is miles away from the Mpc kit, plus you get the correct rear RT glass, add the roll bars, pushbar, mags & decal sheet from the mpc kit & you will get a much better replica.
As for the color Hugger orange isn't bad but I would preffer Hemi Orange. note that many,many,many ,many 69 Chargers where destroyed during the 1979-86 episode runs, so I can guess that the orange shade must have been slightly different from time to time, when new Chargers where sent to body shop to be transformed into General Lee's to replace the "career finished ones!"