Oh cool, glad it helped. I don't know the current key models but if you want to get even closer, try to find something with the same mechanism but a slightly heavier spring. Or swap the springs yourself if you're dedicated.

It still won't be perfect. When buckling springs actuate they pull the key downward a tiny bit (not to the bottom), and when they de-actuate they push the key back upward with a small force. That satisfying bouncy feeling just can't be replicated by linear springs. But the Kailhs come the closest IMO to matching the actuation force, press and release timing, and tactile clicky feeling.

There is also Unicom and ModelFKeyboards.com for true buckling springs, but those are all expensive and ugly IMO.