Hej, All of this year's models look pretty good. Have you tried
www.shore.co.uk ? I think they do shipping to Nordic countries. I think you could maybe buy a Hyperfreak with the money which is a model above the superfreak which is pretty warm this year, I think the C-skins equivalent this year is the re-wired (Looks really good) I think the Hyperfreak comes in a 5.4 which gives you a bit extra! Never Surfed Scotland myself as I come from the south coast of England but it looks sweet.
I'd say at 7 degrees celcius you should be ok with a good 5.3 or 5.4 as that's the kind of temperature I surf in around March time on the south coast and I use a 5.3 (Last years oneill pyrotech which is now a 5.4 this year so even warmer). A 6.4 would be warmer but you lose a lot of flexibility and get tired quicker,although if the water was lower than 7 or 6 degrees a 6.4 might be a good option.
If you go for a superfreak or legend they are still pretty good but maybe the neoprene isn't as stretchy as the more expensive models but I would guess they would still do the job well in 7 degrees .
I also have a friend that has an old 5.3 dawn patrol and his has now done a few winters! So they are all great really. The suits get warmer each year so I think all of this years 5.3 or 5.4's are pretty good.
Curtis
