I have quite a bit of this. It was old and dry when I got my hands it 15-20 years ago.
It was cut with a chainsaw. I have 2 slabs that are well preserved, each 580 x 900. 1 is 38-48 thick the other 48-58. I also have 2 weathered slabs around 3mx 30mm with use-able parts 300-450 wide.
Plus the outside of the log 3m x 450mm x (30mm-250mm). (A curved wedge, less than 1/2 the diameter).
It must have been a huge tree. I'm not sure, but I think it came from SE QLD.
Which parts, if any are likely to be any good for back or sides? What about a top?
How do I tell? Would it make good ukulele necks?
I was told that it is almost as easy to make 2 at a time as 1. Any thoughts on this?
It's a bit of a mixed post but hopefully 1/2 of it is in the right place.

Great minds like a think!