you can try using 2" ABS piping instead of the actual drift tires. often the actual drift tires are too grippy and the drifts aren't as sideways as they could be. if you can't find ABS piping, then you can use 2" PVC piping, though theres WAAAY less grip with PVC piping than there is with ABS. to get the piping on, just push really hard and it'll fit on. don't sand down the wheel and i don't glue them on either so that i don't have to get new wheels everytime i need a new set of tires. if the piping is too lose, then wrap the wheel with some electrical tape or something to make the diameter abit bigger.
as for a setup i'd just go zero camber and caster, and zero toe, then after a week or a month of trying that setup, you could try changing the toe to see if it makes any difference to you. most important thing is just to have the suspension settings equal on both sides.
if youre running ball diffs just tighten them up. if its an open diff then lock it by stuffing the pumpkin(or whatever its called) with something like stickytac. you don't really need a front one-way. some people like it some people don't. it just makes it really easy to get your car sideways, but it also makes it really easy to just spin out. if you put a one-way in both the front and back of your car, then you'd basically have no brakes, and you wouldn't want that.
you don't need a good transmitter for drifting. i just use a futaba attack 2dr, which is pretty basic.
for a motor and esc, you can go basic here too. a good 27t will be plenty enough if you're using ABS piping. drifting isn't about speed, and what's important in drifting motorwise is torque.