GGGGG

I am building a hanging wall cabinet and need a wood source.  It is for my
luthier-daughter and I want the 2 doors to look like the back of a maple
guitar/fiddle, much like this:

https://www.flickr.com/photos/ruby1638/31416705017/in/album-72157703262606191/

Scroll to the right.  I am having a hard time finding anything even near this in
the size I need - 2 doors at 13” wide by 36” tall - so I am thinking about going
to veneer.  Does anyone have a possible source of a veneer like this?

Many thanks

Ed Minch