Hi rtraincollector (Bill),
Level 3 is not running yet. Next work session is June 6. We will have it running then.
The photos in the Aug 12 post above show the pieces. They are L1, L3 & L2 in that order.
We remove all of the track from a section, apply contact spray, and reinstall using better track screws and fit the joints tightly as all of the moving and years of storage took it's toll.
Then we fit a section and reuse the original supports and make what we need for a solid fit. Some section joints get a flange to help secure the joint. Then the feeds are soldered to the connectors underneath and the rails are cleaned with a wire brush on Dremel flex extension and wiped with lighter fluid and then denatured alcohol.
Here are some photos that I took. I had the camera on a light setting from a previous shoot and hurriedly took these shots before leaving the last work session. A lot of the layout was designed where the train is in tunnels after the scenery is applied, including the helix. The fourth level is a scenic mountain top between the helix and the end. You can see the final section on a storage table behind the layout.
Planning is complete for the room in the museum (InfoAge Science Center). The layout will be disassembled, moved to it's home and the scenery work completed there. The building we are working in was part of Camp Evans, when the site was a military base.