Ordered Robot Builder's Bonanza from Amazon today.
Robot Builder's Bonanza
Went to Home Depot to check out 4'x8' birch, and ask if it could be cut in 4' x 4' sheets. Couldn't tell if their plywood was birch. They can cut it down, but their saw was out of order for a few days.
Purchased Carpenter's Square, 4 packages of JB Weld, goggles/masks, ear protection muffs, Crazy Glue, Elmer's Interior/Exterior wood glue. Total: $56.62.