You can get some simple strapping at Home Depot or similar store, and use short sections of strap to mount the US wiper bracket to the light bucket. NOt terribly difficult, but a sin to a purist. You bolt a section of strap to the bracket, then align the hole in the strap with the mount holes in the bucket.
Your other option would be to obtain Eure wiper mounts and new trim pieces as the Euro wiper holes are on a different center. I kinda cut the strap by feel and eyeball, I think LarryBible might have posted the lengths he used.
Should look a little like this if reusing the US wipers.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.