Terryrose, theres a Aust website for Pacers, its linked though mabee the YA site, they must have a measurer that would know but a lot of really good ply boats(like the Manly Junior) are now built in glass & the assocciations kinda license boats pro built onwards from a date can class race with the older boats grandfathered in. I think a guy called Jim French used to build them in Vic or SA. I got one & its a great boat although needs good breeze to really move & also have fitted rowlocks for rowing. Hope you find the plans, mines a stitch & glue boat & some older ones had more framing. All the best from Jeff.