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.

It's just that a starter takes up very little room and if you come out of the motel on a Sunday night it's nice to know you can get the car started if you don't mind changing it.
You know now on the older cars the autoparts store on the corner may have to get it the next day.
They may not have one on the shelf.