It's not a big deal. Camber, try between -2.0 to -3.5, see what you like best
Castor, I'd put as much as you can without the wheel rubbing on the front guard/front bar
Toe is more subjective, some people like toe out, some toe in.
There is no definitive wheel alignment for every drift car in the world, it's subjective, some top drifters swear by toe out but I don't like it.
For rear, I'd just set it up so you get the best tyre wear.