Thanks for that, maybe someone will benefit from my experience. I'll add that I shrouded the headlight in heatshrink, cuts down on light leaks. The Intermountain chassis also includes spaces for bulbs/LEDs to illuminate the class lights and numberboards, when the time comes. I'll likely add a backup light, since my railroad had them on F units, over the rear door. I had to email Intermountain for the programming on the lightboard pins, Lee Ryan was most helpful.
