molds for seats are rare in australai. I have one for a class 5 but wouldnt dream of lending it out. my mini mold suffered significant damge when lent to a pr.
. proffesional fibreglasser. my 5 mold is rather sit up,like a club 88. I have made some for sale, if you want to contact me.
the last few seats Ive built have been pods. 1 came from a mold but I then chopped it up to alter and improve.
I find its cheaper and easier to build a ply and glass stitch(cable tie) and glue seat , as i inevitably cut it up.
seats can be very easily built ,by simply drawing with chalk on a shed floor. If I recall you have 2500x1000mm to play with and the yacht with seat can max out to 3500mm.
can you put up some pics of what youve built or plan to build, or better some mdrawingswith measurements so we can help. Im assuming your not for profit