Thanks all for the kind words. This has been a fin and rewarding project that took less effort than I would have thought.
Rob, that is exactly what kept me percolating on this thing for so long; what will go where? It finally broke loose for me in a couple of ways. First I decided I had redesigned it often enough and would just forge ahead with a plywood version as a first attempt. Secondly, the move to detached wings with pegboard versus swing-out panels in fixed doors seems like it is going to let me keep evolving the layout while letting me use the fixtures right away. The second wing carcass is gluing up on the bench. This one will go elsewhere in the shop until I get enough continuous wall space close to the bench position during some re-org in the future.