Mystery Speedboat

It is my new boat that I am looking to get parts for but struggling to find any info on it. I need to work out a new steering and accelerator setup, but have been wondering what engine sizes are recommended for this boat. Thanks hullabaloo for giving me a start on doing some research that will speed things up.
 
Because the transom area is covered in fibreglass on both sides, I am unable to determine the condition of the material that is sandwiched inside. I have noticed that someone has made a strong 3mm stainless steel plate that hangs over and covers the transom area though.
 
My dad had a few of these and did a lot of development work with Dougie Simms on the inboard jet version, made in Birstall West Yorks.
 
Top