Step 1 pick an artisan (I like Moretti, great communicator, but there are many).
Step 2 tell them what you have in mind and your budget. Shape, stain, blast, length, dimensions. Etc. They will likely want to look at their briar stock and get back to you on possibilities with what they have available.
Step 3 ask for their thoughts on what they can create for you with what they have, maybe even a rough sketch of your collaborative vision.
Step 4 If you like their vision, say yes, then wait and do the pee pee dance.
Step 5 post pictures for us and smoke that mother till you die, and recommend them to your friends if you are happy with it.