For My 2 cents I would have the whole light assemblies replaced with the correct height adjustable and washing unit and then the car reprogrammed for them.
It is costly, yes, but it is the correct action and after you have shipped the car over it is worth it, just think what the equivalent car in Swiss prices would be!
The problem is if the car is a canbus vehicle simply removing the ballasts will give the computer all sorts of problems

I can ask the techs at the specialist garages we use with our clients for import and MFK conversion / passing if you like to see how involved your case actually is. You might be able to also shift the original units on eBay US easily.