Finally uploaded the video I took of it once I got it idling. I did this work "for" the seller as I really wasn't interested in buying a truck that didn't run, so I was willing to put in some time to hear it run before making an offer. First time I went out there we had no spark (and I didn't have any tools with me), so this was try #2. Fired right up on starting fluid once we solved the spark issue (seems related to a knob under the dash I don't have a picture of yet... looked like a variable resistor). Subsequently fired up on it's own with no trouble at all.
First idle video