swim platform install

Driftwood

we are having a swim platform put on our 2001 242 Fiesta Vee and the company in Quebec does not have a template for the unit. it is a surface mount so we need the dimensions of the stern area and profile dimensions at the back of the boat.
is it possible for Rinker to provide me with dimensions, a sketch or a drawing of the aft portion of the boat so a template can be made?
Please advise, thanks