Looks like it fits nicely in that loooong systainer. I don't have experience with the Excel 5 specifically, but I purchased a Thomas dual-piston pump from VeneerSupplies mostly for veneer bagging, but it works fine for vacuum clamping jigs like this. I also purchased a set of Podz, but haven't used them much.
The issue I have is the size of the pods tend to make them difficult to use on my 20mm workbench, which is also my go-to sanding station and assembly area. Obviously, you need a contiguous surface under the podz to attain vacuum.
I'm actually looking to design my own podz style vacuum squares but rather than sucking from both sides, I'd use an integrated bench connecting dog like TSO's Smart Connect or Power-Loc Dog to connect it to the bench. Then, design them to suck only from above.
Let me know how you end up using them. I think I need some inspiration to bust them out more often.