i am going to add a longer bow roller to our 1987 catalina 34 and was wondering if anyone knows if a newer c34 mkII stemhead and longer anchor roller will fit the 1987? i have seen many custom add ons and most are pretty good, but before i tackle the job i want to know if a retrofit from old to new will work? will the bolt holes for the stemhead line-up, will the backing plate fit for the anchor roller, etc. thanks for the help al