Just a word of advice in the bowl blank making. Make sure you have a big enough bandsaw. My little 10" Delta won't handle the load if the wood is seasoned hardly at all. Of course, a lot of folks cut their bowl blanks green.
I haven't shipped any bowl blanks before but I do have lots of boxelder, (curl red stain) spalted maple, walnut, and others. I usually anchorseal blanks before throwing them up in my loft. I have no idea what turners expect to pay and how much it costs to ship blanks but I suppose it could be arrainged.
I have a bunch that I cut and sealed about 2 years ago. I have :
Spalted Pecan
Spalted Maple
Walnut- crotch and regular
Mulberry
Beech
Poplar
Ambrosia Maple
If you are interested in any, let me know. I don't do many bowls now that pens have consumed my life. I could make you a good deal on some, or I am always interested in trades... whatcha got? LOL
Mine are usually square- at least until I knock
off the corners on the bandsaw to make it clear the ways.
But I only do that for ones I'm turning, or to make
them lighter for shipping if requested.