Take the front struts to a Bilstein or Koni dealer and they should be able to find the right diameter inserts, modify the legs and your done (check the articles section for more details....http://forum.n12turbo.com/viewtopic.php?t=4415)
I've never found their quality to be very good. A while ago a friend put them into a VK Comode and they lasted less than 6 months....I guess you get what you pay for.
Well, i also wouldn't recommened the oil-shocks. That are the standard after-markets for our Cherry. The gas-shocks are under my second N12 now for 10 years and they are still perfect and the ride is very good!
Nissan Cherry N12 1.3 and 1.5
Nissan X-TRAIL 2.5 Columbia Style