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I would have several questions:
How deep are the pockets of your customer. Alligator skins are expensive.
The size and profile of the frame.
Do they want real alligator or a simulated alligator from leather.
Have they an opinion as to the color and texture.
If you're interested in creating a texture cheesecloth can create a nice impression in gesso. I found A liitle piece lying around the shop to give you an idea.