You can have one. Here's a link to Rob Bridges'
Brimstone Guitars. Rob is a great guy and quick to respond to questions. Be sure to tell him that Rich Hill sent you. At the time of this post, you need a $1300 down payment and another $1300 at delivery. Rob is flexible on woods used, so if you want something special, he'll work with you. Here is the lowdown on Aden's Willy Bill 3-String, from the man himself:
Tell me about the woods in Aden's Willy Bill.
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1 9/16" alder bass with highlights and a 3/16" full figured maple cap.
His highlights are two strips of pine running through it. Bad ass guitar.
What about his neck?
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Birds eye maple. Highly suggested. In fact, I prefer it.
We can do a hardwood fretboard, but birdseye is very hard and it's a natural winner every time.
It feels like marble. I sand it to 2000 and rub it down with gun oil or tung oil.
Turnaround time?
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It's at 3 months right now. The neck-building process is a month. I have to get pickups made and order all the parts that I need to have for the build including the four-day process to glue up the body.