I am currently building up a 2015 Heckler frame which has a 73 mm BB width. I purchased the race face BSA 30 threaded BB and I am not 100% sure what my spacer set up should be. Here is a link to the only diagram that comes with the BB.
Based on your link to the diagram....One spacer on the right side. There are a total of 3 spacers 2 on the right and one on the left. For 73mm the one on the left is not used and one from the right is not used.
I remember spacers being included w/ the B.B. I also remember needing buying the $20 wrench to install the B.B. I’m done buying Raceface garbage that doesn’t have good install instructions and 0 support.