Stuck in Dependency Hell: A Dongits Model Railway Construction Update

Building my way out of 'dependency hell' at Dongits Model Railway.

Sometimes the obvious sequence to build things doesn't work, and I end up working in a completely unrelated part of the room, trying to unblock something apparently unrelated.

Table of Contents:
0:00 - Dependency Hell
0:40 - Terminus board frame
1:19 - Terminus board top
2:05 - The Filing Cabinet problem
2:53 - Moving inconvenient wiring
3:32 - Measuring the height difference and correcting the plan
4:14 - Building the first incline supports
4:34 - 1:1 Plan and foam roadbed
5:20 - Next steps