Related, but not sure they fit exactly:
Transporting a large number of books from USA to UK
Sending myself things from the US to Europe: how do import taxes work?
I have maybe three cubic meters of stuff that I haven't yet had time to sort through, so I'd like to bring it with me rather than store it for however long I'm on the road. (It is what's left of sixty years of accumulation by me and my late wife, both not-quite-hoarders but pretty close.)
I'm not changing permanent residence because I don't have one. Sold it when I retired.
There are some books, some clothes, some electronic parts, more than ten photo albums, and lots of paper (files). I'm guessing three cubic meters. Certainly far less than ten. Resale value less than a hundred US dollars.
Can I travel with it on a freighter without paying a fortune? I noticed that some of the luxury cruises have luggage limits almost as stingy as airlines.
iContainers.com quotes US$ 350 and up (assuming 50 KG & 3 m³) but I'd have to come up with a big enough box myself.