Before you do this mod, check your Motor Vehicle Act/Regulations to
see if this modification is legal. (I doubt it!)
Here is a way that I have used, just not for my KJ.
Clean head lamp throughly, with glass cleaner, then spray a little soapy
water onto headlamp.
Place the window tint film over the part of the headlamp and the angle
that you want covered.
Using a section of windshield wiper blade or a credit card with a micro
fiber cloth wrapped over the edge, work the film into position and squeegee
out any bubbles and small creases (if any) and let dry.
You can use a hair drier to speed drying time, just don't cook the film.
Once dry, trim the excess window tint material with a new ex-acto knife.
An inexpensive way to achieve the look you are after. And a good way to
spend an afternoon on a day off!
Any more questions, feel free to pm me.
Cheers
Ry'