Cross-Country Road Trip in a '68 Barracuda

So it sounds like the spares I'm missing are fan belts, a ballast resistor (or maybe two), fuses, etc. @adriver, why do you mention bringing a spare starter? Is that a towing related concern or more of a precaution from getting stranded? It was replaced with a new one in 2018 but I do have a spare I can bring with.

For the payload, It's an aluminum-cased A833, two aluminum bellhousings (one V8 and one slant 6), an aluminum Holley strip dominator, a Holley 650 vacuum secondary, and knuckles, rotors, old calipers, UCAs, and new calipers for a 73+ A body front suspension. Maybe a Yamaha Piano if there's room. The car was originally a 7 1/4 car, but the previous owner put in an original A body 8 3/4 from a wrecked '67 Formula S car.

That's my biggest question, is the load capacity. I can definitely figure out other shipping options for some of the parts if it's gonna be too much weight. I can fit the 4 Barrel, calipers, and other smaller parts in their own separate USPS flat rate boxes to take weight out of the car. The big items I really want to bring are the 4-speed and V8 bellhousing, the disc brakes, and my toolbox. Everything else can stay behind or get shipped later if necessary.

@clementine, thank you for the offer on the shop and parts! That is a very generous offer and I will let you know if I need it. I'm hoping to get the car squared away before it gets on the boat but if anything goes contrary to that I will let you know.