Glass, maybe.

With the warm temps I am considering glassing the bottom of the pram tomorrow.

With a line marked on the sides I can lay out the fiberglass and trim it to shape.

I don't actually have one piece big enough to do the entire bottom, but in the interest of using up scrap I can do it in 3 pieces and then at a 3 inch tape along the chine.
The glass is really just to armor the bottom which is pretty thin and delicate.
With a plastic tarp to cover and a small heater going the boat should cure overnight.