Swiss layout kit for Apple Extended Keyboard II

Description

https://imgur.com/a/ZXTCC0g

I have an ANSI layout Apple Extended Keyboard II with a dealer-installed (?) conversion kit that includes the keycaps highlighted in red in the second pic and converts a US layout keyboard to a Swiss layout.

I want to convert it back to US layout and will pay for shipping both ways if it's not too expensive. Alternatively, if you want to sell me the keycaps I want but don't want the Swiss ones in exchange, make me an offer.

The keycaps appear to be made of ABS, as opposed to the original PBT. they're the same thickness as the originals but ever so slightly shinier and darker.