I have a lovely piece that I picked up in Hawaii. Mine was gifted to me, but I also saw some when shopping for koa lumber. I bought some koa from Aloha Woods (
http://www.alohawoods.com/) and they had Mango and other local Hawaiian wood. They were very helpful and would be willing to send pictures first and ship. Shipping might be affordable with a Priority Mail Large Flat Rate Board Game Box (23-11/16" x 11-3/4" x 3"). They say they can ship somewhat affordably using those boxes. They were super nice and not cheap, but given the nature of their product not that bad either.
Mine was acquired for my lutherie work, and I have not yet built an instrument with it, but I did need to cut a little off of the slab to get it into an airline sized bag and the little off cut seems to work, sand, and finish nicely.
I have not looked into it, but was told that there was some available from little one man operations in south Florida. These little operations can be hard to find even when you are local to the area and since you aren t I don t know how you would find them, but maybe it might be possible.
- PeteStaehling