I tried amber LED bulbs in the cab clearance lamps, but they looked yellow rather than orange...wouldn't want to be mistaken for a newer Ford with LEDZ everythang.
Up to you, but the color was perfectly fine (functionally and legally) with the LEDs.
If I could find LEDs in 194, 3652 and 1157 that all outputted the same hue of orange
I can't think why this matters unless you spend much time staring at your truck with its lights on and have OCD or some other condition that makes it extremely important to you that all amber lights on the truck are exactly the same shade of amber.
I would go that route for cab, side marker (both amber lenses)
If you put LEDs in your side markers, you will have problems. The side markers are wired across front position (parking) light and turn signal feeds so they provide steady light whenever the position lights are on, and also flash with the turn signals. This depends on current flowing equally both directions through the side marker bulb (and, come to think of it, through the front position light filament). This is fine with filaments, which work no matter which way current flows. LED stands for light emitting DIODE, and a diode passes current only one direction. To keep everything working correctly, you will need to change the side marker wiring: find the wire that's presently connected to the turn signal feed, cut it, and connect the "socket" end of that wire to ground. Tape off the "truck" end of the cut wire. Then LED front turn signals and/or side markers will work without problems, but the side markers will no longer flash with the turn signals. That's not legally required, but it is a good crash-avoidance feature; you can reinstate it by using a logic module as described
here.
Yes, the ECE Trucklites are a softer shade of white than I prefer
Household light bulb packaging notwithstanding, there is no such thing as "soft" (or crisp, or smelly, or delicious, or melodious, or unctuous, or creamy...) white light. Also, I'm confused; in post #105 you say you like the warmer white, but here you say you don't.
If the Zevo amber 1157s are the wrong hue
They aren't. They're the right hue.
whats the best alternative to the 1157NA incandescent for the front signal lamps? 3496 Honda available in amber?
No, it is not. At that point you'd be looking at something like a 2357A or 2357NA. Brighter, but short life and rapid blackening, and way too short a life to be compatible with DRL operation.