Hella has a couple 90mm LED headlamps also but a very short search turned up prices around 500$.
Found a couple more 90mm headlamps from other manufacturers but i'm guessing the prices are similar.
For the time being, 2 decent 90mm halogen lights are fine for me :). I'll check in 1-2 years what LED lights fit in place of the halogen ones.
Might be nice if the pressed fit lens protector is removable. I think the LED light might need the extra cooling from a small gap around the len's opening.
Typed from my mobile, sorry for mistakes/typos/etc.