These are based on a model @nem sent me for using JLFs with a Hyper Neo panel. He did the hard work of measuring things, so full credit there. I just added the outer holes.
Here's a model for 6mm spacers to use with JLF-P1 and JLF-P1-S plates in different circumstances. 6mm should give you the proper mounting depth in both scenarios, but you could always tweak the z height when printing.
The middle holes are for using a Sanwa JLF-P1-S plate with a panel designed for a non standard Seimitsu S plate. I believe this is limited to SNK cabinets but it could be applicable in other places.
The outer holes are for using the JLF-P1 flat plate with a panel designed for the Seimitsu LS-56-01 or a panel that was poorly designed to use JLFs flush mounted.
Here's a model for 6mm spacers to use with JLF-P1 and JLF-P1-S plates in different circumstances. 6mm should give you the proper mounting depth in both scenarios, but you could always tweak the z height when printing.
The middle holes are for using a Sanwa JLF-P1-S plate with a panel designed for a non standard Seimitsu S plate. I believe this is limited to SNK cabinets but it could be applicable in other places.
The outer holes are for using the JLF-P1 flat plate with a panel designed for the Seimitsu LS-56-01 or a panel that was poorly designed to use JLFs flush mounted.