I took a slightly different approach:
(which maybe I should revisit on my SO5 Pro)
That said, maybe the thing to try is the “Ship of Theseus” approach — what if one were to:
- source a sheet of 1/4" MDF
- pulled all of one’s Filler strips
- glued them to the MDF sheet (what glue would be most compatible with what is already in use and avoid the gumming up issue of tape?)
- cut them out (perhaps using a templating bit?)
- drill the holes through
- reinstalled them
This would probably be a bit cheaper than making from new, and it would allow one to use scrap material which otherwise might go into the fire pit.