Went to Lowe's (:hurl:)
Came home with a decent "passby" garden clipper, a new hedge trimmer, two varieties of lavender I had not seen before, a Japanese maple tree (common, hardy variety) and five, seven-ply sheets of oak hardwood plywood.
Five sheets will be enough for two enclosures, based upon my Iso-Bomb design, but scaled up for Pro-Audio fifteen inch drivers.
I have completed my paper plans, even without a hardware "thousand degree" protractor. The enclosures will be large and very heavy.