The current ones are gasket-mounted

I’ve just remembered that Pulsar also sells ISO TKL keebs, I think those might check all of your boxes. There is a Hall Effect one and a traditional mechanical one

MonsGeek has some ISO keyboard kits! Their website is kinda confusing but you can easily find them on AliExpress

The title is kind of genius.

BTW I don’t see this as an actual issue. The important factor is which people read them. If it’s journalist who then report on them, and politicians who then act, then they are still effective. I don’t see why any average citizen should want to go and read them directly