Cheap 4- function switch?

Hey there!

So in my country, everyone has LK Fuga switches in their house, that a tad smaller than what others are used to. There is currently a trend going that people buy Philips Hue summer switches, disassemble them, and solder them to low voltage switches like this:


The switches used are these:
https://www.lk.dk/produkt/5703302097857
English manual: http://www1.lk.dk/katalog/vejledning/019D759022_07%20UK.pdf

Anyone that can share suggestions how to do this in other/cheaper/better/smarter ways? I would like to retain the original switch frames etc.