Pottz - Thanks!  As is evident, I got to use-up more scraps in building the jig.

Ty - I did not even think of a planer sled as part of a solution.  Even now, I'm having trouble having trouble picturing just how to make such a jig.  I'll have to do some more thinking on that one.

Dave - I did consider going with square-cut spikes.  I spent a lot of time looking at images to try to convince myself that the originals were square cut.  Once I found the damning images that showed them as diamond shaped, I felt compelled to try to do the same.  An engineering problem to solve is just icing on the cake of any project. 🤣