we did some of the same things recently.
we left our bikes in Ushuaia in a shipping container, if you or anyone you know want to share the container from Ushuaia to Long Beach California this feb/march/april or when it's full...contact us. Container is $4500...we already take two spots...looking to split the cost some more.
We have a shipping agent in Ushuaia you have to pay $280, he takes the bikes and that's it...your work is done.
James and Colleen Tucker.
Aut viam inveniam aut faciam
DMV work/insurance/registration/titles/address use/room rental/motorbike&vehicle buying/travelers help/problems solved