Lite Gridfinity centerpiece and larger perforated centerpiece

[mostlydave]

Would it be possible to get a "lite" version of the 3x5 (or ideally all) Gridfinity centerpiece without the magnet\screw holes like these?

https://makerworld.com/en/models/700948-gridfinity-simple-base-all-sizes?from=search#profileId-1080883

I tried to make my own but had to reduce the number of triangles so Fusion could work with the model, and it messed up the geometry.

I think the lite version would save a lot of filament and print time. (almost half in my attempt)

Could we also get bigger versions of perforated spacers to match the gridfinity centerpieces? I would need a 3x9, to match the 3x5 Gridfinity.