The AdventureTech mirror extenders are fantastic. Each side has a spacer to make mirrors an even height. Go look at yours, one is higher than the other...can you now ignore that? 
Great install instructions and night and day rear view vision. I run with a GIVI Air Flow and have noticed no weird buffeting.
Suzuki Mirror Extenders - AdventureTech, LLC.
Our extenders fit all year Suzuki V-Stroms and other bikes with M10 x 1.25 right hand threaded mirrors only.
ETA: not certain about shipping to your homeland but Rick is a vendor here...
Great install instructions and night and day rear view vision. I run with a GIVI Air Flow and have noticed no weird buffeting.
Suzuki Mirror Extenders - AdventureTech, LLC.
Our extenders fit all year Suzuki V-Stroms and other bikes with M10 x 1.25 right hand threaded mirrors only.
ETA: not certain about shipping to your homeland but Rick is a vendor here...