Nothing is going to break stud-wise...and they are on the RIGHT fork, not the left.
Well, unless the studs are tightened incorrectly in the first place or the clamp is itself installed incorrectly (gap on top).
It's the spring IN the fork that's the issue. OEM they are good for about a 135# rider. In most every case, they will need to be changed to suit.
Large jumps? It's a KDX!! One of the best woods bikes on the planet it's advertised to be......and it is good at it.
Whether RM, KTM or KX forks...they've all been tried at one time or another. So, yes...mods CAN be done to accept such frontends. They are NOT 'bolt-on' swaps.
Try a search or two with suitable keywords.
...I'm not sure what a set/triple lamp is..........
;)
Cheers!