Hi,
If the engine is cranking at close to a normal rate,the voltage at the starter while cranking should be near normal so, if you're seeing 2V at the coil, I would suspect an internal partial short in the coil. Try swapping in a known good coil.
Hope this helps
Not Commercial, not even Ford. They are an aftermarket sealed beam conversion piece. I have seen them advertised as 40 headlight doors a million times but they aren't. IIRC, the 40 deluxe used the chrome doors and the 40 standards and 40 and 41 half ton commercials used the painted doors with a...
Your work is awesome! Keep at it. I spent over 13 years building my 40 Resto-mod but I too left it sitting for a while now and then. Never let the stresses of building it get in the way of the hobby aspect. Here is a pic of mine (not HAMB friendly, maybe not Ford Barn friendly) but I had a ball...