Ray, the Thorney Island Sailing Club have an old ali assault boat sat in there compound looking very sad for itself. Its the ali type not the rigid raider version, so with a bit of ply decking might make a pontoon of the right size for you. Shout if you want the phone number and I will track it down on Monday. Is this for Bembridge harbour ?
Thanks Pete,got a spot in Wooten,if i get the pontoon fixed i can use it,the end 5mt is missing,so putting the craft there could work ,don't know if it's going to be to much hassel though.