I have a KDX200 sat in my garage. Long forks; bikes has a 37.5" seat height. You'd need some big rear shock to compensate, or else you'd look like one of those raked-out choppers from the 70's.
Plus, KDX front forks are old tech and basically crap. Anyone serious about their KDX ditches the forks and does a USD from swap from a KX.
IMO they are not the worse since at least they are cartridge simple and reliable but I would agree they are on the light (also soft) side for this and would need the strongest springs we can find.
The only reason was because they share the same lower and upper bearings so it is a direct plug in but not a huge deal. They give decent clearance when turning but since the offset
dimension is different this automatically cancels this option for me. It might be ok for others.
In reality there is no 100% straight shot plug in and I wanted to avoid extra work like machining / lathe time but not the end of the world.
That is why I am going with the 39mm of the DRZ. Probably the same DRZ wheel or a 19" one. Have not decided yet.
Then I will have to machine a the triple trees from scratch to get the offset distance and clearance I want. the advantage is that I machine this from a billet
I can provision support for other things like auxiliary lights or even a hook for small pulley.
At the same time and as you well pointed out the KDX in original form would be way too high for this bike and it cannot be risen (or should be risen) that high anyway. so it will be have
to be done to preserve the proper ridding geometry and front suspension might need to be lowered and limited to match. I don't want to go too high. I will be conscious of extra clearance
but I also want to be able to ride over a wash or rocks like it is nothing and w/o bottoming out.
Many thanks for you input. I know the KDX is doable but will not be my choice. It is like the DR650 they are great donors at first glance but they will need re-valving and springs and
then they behave close to a high end cartridge fork but it is additional time and $s.
Same with the rear shock it needs re-valving and new piston. So considering all additional expenses I will go big yet budget conscious and make
sure the front end can take a hit although is not going to any competition.