if you were two teeth off couldn't you just move the belt those 2 notches and get it close
The way I did it was randomly drill a bunch of holes the right distance to line up with the cam pin and just play with it til I found a combination of belt position and hole that gave me the timing I wanted.
Set your ignition timing to 0 with the cam in the stock position then check your timing again after changing holes it to see what you got. If you are 18 degrees off move it a notch on the belt.
Just don't drill so many holes in it you don't have any strength left. 5 holes should be plenty to get you about any timing you could want.