Hello,
i put one of these in my westie from the US
https://www.valterra.com/product/rocket-hand-pump-chrome-carded/
Has a vintage look and worked brilliant you will have to drill new holes tho
Regards
AFAIK there aren’t any similar replacements. I bought one of the taps in your second pic a few years ago, but as you say recently they seem to be out of stock.
The one suggested above looks pretty good though.