Stingray skin; how do I...?

[humminboid]

I have this stingray skin that I want to make a sheath from, but it is very thin and supple.

My idea is to make an inner sheath from thinner leather for reinforcement and sturdiness, and then cover the inner sheath with the stingray hide.
I think the best way would be to partially wet form the liner sheath, then glue the ray skin over the curved, partially-formed leather. Will that work? Can you wet-form stingray? It is a fish, soooo... it must be waterproof, right ???

Now,the questions...
1. when the glue is dry, can the two layers of the sheath be fully wet-formed to better fit the knife?

2. What is the best glue to use on a project such as this?

3. Is it necesary to stitch the stingray to the base leather all around, to avoid future separation?



Thanks, all.