I have been waiting for something like this to walk me through the process of switching from very cumbersome surface-taping process for securing work to cut with Shaper Origin to vacuum holding.
This solution you have come up with looks really convenient.
I like that the foot switch has a cover to prevent sawdust on the floor from being pulled into the line. Yes, your filter will protect the pump (based on its position in the line), but you’ve got no filter before the Rockler pad. Is that not a concern? Genuinely curious.
Also I am concerned about the change in height. So maybe relying on the neoprene (?) bumpers on the top might introduce error if I the pieces do not always return to the same height between pump activations.