Ok the color of the fuel doesnt mean anything, the manufacturers of the fuel just different dye to be different than everyone else, purple, red, blue, green, that doesnt make a difference, but manufacturers do blend their fuel different from each other, some use castor oil in the fuel and some use synthetic oil, and some use different quanity oil in the fuel, check with the model store to see how much oil is in the fuel you buy, Usually 10 to 15%. Im not sure whats brands you can get there but usually the generic stuff at the hobby shop or modeling store is a lower grade, that doesnt mean it wont run well for your car youll just have to experiment, the only fuels Ive tried and liked were made by Traxxas, Trinity, Odonnell, BlueThunder. But since you already have some fuel try it out and keep tabs on how hot the motor gets.
Radios the futaba 3 ch radios are all very good, Im sure youll be happy with that model. I dont think it matters if we re off topic Its all rc and we're all drift crazy. Maybe Ill buy a camera and send in some pics of my drift car.