I recomend just getting the KE30/KE35 booster, then there is a whole host of Toyota MC's that will just bolt up, even off brand new Toyotas. I am useing a 13/16" one off a TE72.
The KE55 booster is for the Austalian brand MC, so if you realy want to use one of those try something off a XT130 Corona, or Commodore.