"Anyway you can".
There is no "one way" to do it, it's all Macgyvering.
If you can get them cheaply an easier way would be to use a VESA monitor mounts with pipe clamps like https://images-na.ssl-images-amazon.com ... L1000_.jpg
But be prepared to pay as much for the clamps, or more, as you would the HOTAS.
Also, I'm not sure, but I doubt the stick available to you have proper mounting holes, so that's an issue.
I suppose you could try double sided tape, or just straight up glue, would be a bitch to remove though.
This is another:https://imgur.com/gallery/qhhhQ
Mine is even simpler.https://i.imgur.com/TmTuhmL.jpg
Instead of bolting the Hotas to my chair, I simply slide my chair into my little corner.
Just a couple of long pieces of wood tacked on to a wall, with some 2x4" for support.
This was a 20 minute fix after my main cockpit build turned out utterly useless :\
But I'm on PC, with VR, so I don't even need a screen in my general vicinity so that frees me up a bit.