There's been a lot going on lately, so I haven't got much done on the X-II. The parts are really piling up though! The coupler base finally arrived, and also the Southco latches. The latches were expensive and hard to find, but I'm definitely glad I spent the extra money on them. I also received the wireless control unit and (2) 4-button remote key fobs, and more LED lights and switches from SuperbrightLEDs.com. My doors arrived, from Frank at Vintage Technologies, and the hurricane hinge and weatherstrip got here all the way from Grant at Lil' Bear Tag-Along's.
The RF controller and fobs:
I did get the coupler base painted last night, and cleaned the grease out of the wheel bearings so I can pack them with good grease. If I don't go insane and run away by this weekend, I hope to have some actual build progress to post.
If the gf does drive me insane, the first person to find my build location can have all the parts.
Last but not least, heres the updated "final" wiring diagram.