There was a run of 2 channel tanks towards the end of production. They had 27 and 49 mhz (A,B) built in. I know there was camo and olive drab 2 channel but thats all Ive seen.
Even for the approx. going price now of $250 they cant be beat. Getting into sixth scale is not cheap. Battle Ready Armor is what, $600 plus? Then you have to build it, paint it, no suspension, no radio, battery, charger, motors, etc. After that it gets into the thousands for brands like Spearhead, Verio, and Armortek.