I saw some 1/4" thick quarter sawn Hemlock a couple of years ago. It was only about 5 or 6 inches wide though about 4 foot long. It very definitely said Dulcimer to me. I unfortunately was not listening at the time and did not buy it. Regret it to the day and if I ever see it again, hopefuly won't be so stupid. Give it a try.
JohnB