I’ve been following the progress on your beautiful layout, in particular the CTC panel design and construction. I have a small “vignette”-style HO layout of approx. 12’ x 13’ based on a proto-freelanced section of the joint Rock Island/Milwaukee Road trackage south of Davenport, Iowa. I designed the layout on 40" by 40" graph paper after reading as many John Armstrong books as I could find, then had the paper scanned and printed in pieces at full-scale (which I used as a series of track templates). The layout has DC sections, and I wanted to have a CTC “island” to control the crossovers, within an ABS current sensor-controlled system.
Based on the CTC panels I found on this website, I contacted Bob Sobol for help in finding the dimensions of the panel and design details. Thanks to him, later this year I’ll be able to approach a local Twin Cities (MN) metal fabrication firm to build a small panel for my layout. I’m pretty excited about that! Below is an image of the layout: