Cosmo-your 2" walnut boards contain about 9 board feet each. Their value depends very highly on their quality, ie knots, seams,cracks,sapwood, rot, etc. If they are pretty nice, but not perfect, they ought to be worth at least $5.00 per board foot. Check with cabinet makers, or a specialty lumber yard for price comparison.

All good stuff about bedwood, but must clarify about hard yellow pine being a hardwood. The easy way to remember is "hardwood with leaves, softwood with needles". Hard pines are softwoods, basswood is very soft, but is a hardwood.