For a move across the country? There is zero chance I'd trust someone driving an 18 wheeler; too many friends have had their possessions disappear for weeks on end in a warehouse. If I were under a restriction similar to yours, I would rather move the boxes into the truck myself, and pay for the extra time it would take.
I guess it is fine while you are still young and poor, and have few possessions. But as soon as you can afford it, you should pay the professionals to protect your friends from harm.
I’ll pack and move all my stuff as long as I can. U-Haul ftw.
My wife worked for a company who did this. The packers were dedicated packers, it's what they did. The movers were dedicated movers, moving boxes and large furniture. They were able to do things we wouldn't have thought of - protecting corners and doorways. They also had all the equipment they needed to move heavy/awkward stuff.
I'll personally never move myself again - too much stuff that's still good and would cost too much to replace. And I'm getting too old to want to move a 3BR (aka 1 br and two offices) worth of stuff again. Standing desks are fscking heavy.
So I hired a moving company. Boy, I will never again move myself. Best service I could imagine. Everything done in half a day. No bothering of friends and relatives. No heavy lifting at all for me. Everything insured, so if something breaks, it will be replaced. All furniture in place in the new appartment. And it wasn't that expensive after all.