On Feb 1, 1:06 pm, Paul wrote:
Just to let you know what the boat looks like - it has pretty much a
flat floor throughout except for a right hand moulded seat and
steering console. I think it used to have a perspex windscreen as the
screw holes are there but no windscreen.

Viewed from the front, the hull has two keels with a centre one much
smaller than the other two. I thought this was a typical dory hull.

I bought it second hand but I think it may be a Dell Quay Dory as I
saw one once and it certainly looked like my boat.. It is a very open
boat.

Dory, tri hull, whatever. 16 foot boat... Anyway, you could probably
get away with a light cuddy made of 6mm okoume and glass, but unless
you are versed in very light weight construction and design, I would
still go with the canvas.