I have know that ppl have done that before, reg a buss then used the something about the buss name in the number plate of the car. Reg buss in the ACT will cost you $110, then to buy the plates it will cost $500. (have to have something to do with buss name.) YOu will also pay a bit more for reg as your car will now be a buss car, so you can park in loading zones and shit.