Hi Shawn,
there is a lot of Timbers here in Tasmania that can be used by Luthiers, a have done alot of research over the years and realize the resource of some of the Timbers used in the past are now becoming rare and things have to change before its too late,
Timbers here so far i have found through comments from past customers are, Myrtle,Sassafrass, Blackwood, Silver Wattle member of Blackwood Family that is Acacia, Koa is also a member of the same family in fact one of my customers tells me our Blackwood has a better Tone than Koa, other Timbers are Native Olive, Celery Top, King Billy, Huon Pine, Eucalyptus, and as you were saying Cheesewood, a problem with a few species, Cheesewood, Native Olive, Ect, it is now hard to find Large Trees, Luthiers might have to start use'ing 3 or 4 Piece Backs even Bob Taylor of Taylor Guitars has made this comment, as for your comment about high figured sets been Killers in looks i agree but high Figure is rare but good Dark colour Blackwood is beautiful, also White Sasafrass changes to a beautiful Golden Colour as well as Celery Top, i will post more news soon, best wishes Bob.