I have a set of custom made ones on my 23 CC that are starting to wear. I am considering going with these
http://www.seadek.com/
I think you take measurements and they will make them according to your specs. I saw a thread on THT recently where a guy put them on a 23 contender, bow to stern and said they were a little less than $1000 for the whole project.
just something to consider...................