need help adjusting my linkage

Just to chime in on this topic. Last week I was mocking up my stock Hurst shifter with my 4 speed transmission sitting on the bench. I tied to install the alignment pin through the shifter arms only to find out that the reverse arm was not drilled. After a little research, I found that the factory shifter usually did not have an alignment hole in the reverse arm.
I noticed that in the old factory 4 speed training video that was posted, that they use a alignment tool that goes around the arms to hold them in position. I wonder if this is due to there not being a hole in all three arms? Where do you get that tool today?