I think they are similar build to the Simmons Maxim cat.which I have had for 15 years and still use daily doing sailing charters.Mine was built in 2002 now 17 years later it still looks good performs well and feels strong and tight.Currently planning on replacing the 17 year old
3gm30 engines and trying to get into contact with someone who has done this as I would like some
advice as to the best way to do same .Cheers Geoffrey.