I know (and I'm glad) it's been done but here's my go at it.
The project:
Getting Miss Piggy here on a diet and improve her nimbleness so that this thing rides a little bit more like a proper dirt bike.
So far:
Twobrothers exhaust cat-elim: -18lbs,
ABS removal: -11lbs,
SS brake hoses: like I'm gonna tell if something add weigth!

(although they probably don't)
Elkas front and back: same as above
In near future:
Front frame mods and fork swap
21inch ktm wheel
Front brake swap
Later:
Trimming the absurd Corbin sofa
Trimming the rear fender,ligths, etc.
Rear frame reinforcements
Headlights replacement
Beware as this may take a while. I view this bike as a work in progress. Basically, I looked all over for a perfect bike and could not find it. So instead of buying something else and modify it, I decided to keep what I had and pimp it until I am satisfied or fed up and take up knitting.
Mind you, I'm a fan of the shaft drive and boxer engine, both for feel and extended intervals of maintenance.
The bike is old and has some solid mileage so it's no garage queen. I also happen to ride it more than I wash it and it shows. Please forgive me or look in another direction.
Enjoy.