What I accomplished today:
1. Another trip to Home Depot (and NOT finding what I actually wanted......again....).
2. Another trip to the lumber yard (to get what I actually needed at about the same price as Home Depot....if they had it).
3. Cut, fit, and installed tabletop plywood surface.
4. Added additional 2x4 bracing to the tabletop framework.
5. Played around with lane designs to reconnect the hairpin turn to the rest of the layout (most fun part).
I used 1/2" plywood (OK, 15/32") for the tabletop. The original portion is 5/8", which you can't find anymore. Even 1/2" and 3/4" is undersized by 1/32" now days. I mean come on, how much can 1/32" actually save them?
Here you can see where I drew in the proposed new slots that will tie the hairpin curve back into the rest of the course.



























