They clip on using the 3-a-side mounting bosses but they come with adapters with the 3 mounting points built in, and then the adapters cable-tie on so you can run them on suspension forks too.
Selling a pair of fitted but unused Gorilla cages, bought from here last year at some point but haven’t used as intended due to that whole pandemic thing.
Can provide photos if needed but will be complete with the ‘nipples’ to connect to as well the units themselves.
You are an absolute hero - I’m literally writing this down on a pad next to my machine!