I used to own a Creighton 20 which was basicly the front end of the centre cockpit 28 with a outboard engine, it was a great boat really thick grp structure, sadly in 2003 whilst on a trip on the system having come through the ribble link she was stolen at Preston brook and set on fire, incredilby she still refused to sink and was towed back to the Marina there with all the topsides gone and sadly craned into a skip. As you can imagine we were very upset, I learned that they were built by a man called Creighton Ball in the old tram sheds in Nelson, he started making folding caravans and i have seen some touring caravans as well, they also made a caraboat called a Creighton Gull, there is a great pathe newsreel clip on youtube showing it though i not sure any survive in this country but we have seen pictures of one in America. The boats had an alluminium tag in the cabin with numbers on which showed the date built. i will try and post a link to the youtube clip,
All the best with your boat, I'm sure you won't have any osmosis problems with a Creighton.
Neil..
http://www.youtube.com/watch?v=lNTwUnM5pJY