I was just looking at ordering components for a few SSR4 w/DMX, and noticed the same thing as jnealand posted in the original note.
And since I went to the wiki today, the Mouser project still doesn't have the correct quantities for the items mentioned. If I had ordered, I would not have had enough of the jumpers or the wire posts for each SSR4.
I didn't check the Base SSR4 or DMX options, but clicked on the entry in the wiki for the SSR4 with DMX.
It's the project at Mouser that needs to get updated, not anything directly in the wiki.
Mark