[Diverted]

Here you go, one of the choke/transformer chassis and one of the baffle board.
I read those links, and one note I found interesting was that in the 650RX models with separate cabinet, the choke/transformer chassis was mounted in the chairside unit, not in the detached speaker. This might be a clue here as it doesn't look like the wiring from choke/transformer chassis to speaker was altered on this set to shorten it. Though it'd be easy enough to cut wires and re-solder, the solder points and connections of the two wires to and from the small chassis seem to be original to me. I don't see any evidence of a re-solder/re-wire here. 
Thanks for the interest and help!