Jerry,
Most beautiful craftmanship your bestowing on your beloved Commander! First class on the plumbing of the sink, with the marelon sea cock and glassed in backing plate / mounting studs, excellent. I also really like your cabinet cased with the milled solid stock for the rounded corners.
I too, utilize World Panel Products. They have a distribution warehouse here in NC, down in Windsor that they let me brouse through when in the area. I think their prices are fair, considering my alternative was a retail outfit in Norfolk called Yukon Lumber. Their prices were very high. World Panel caters to the marine industry and thus has great stock of BS 1088 standard ply along with, teak, mahogany, etc.. I'm like a kid in a candy store when I make it down there to them.