You looking for just one pulley or a set of pullies and alternator brackets?
What arrangement are you setting up; manual steering, power steering, AC or no AC?
Can you measure the approximate distance out from the balancer face, where the pully bolt holes are, to about where the center if the v-belt groove would be? What approximate diameter do you want?
to be honest i have no clue...assumed it was a proprietary factory part that comes on all motors...Ill have to ask the guy in charge of doing the build