I did a road trip with my family back in 2001 (new year)
we started in LA, 29 palms, vegas, grand canyon, taos, new orleans. it was the best holiday i have ever had and you see some amazing things. The most amazing was a rusted out old 62 vette. i wanted to take it home but i wasnt allowed.
We also stumbled across a military base in Nevada by accident, we were escorted back up the road to the Freeway and told not to go down that road again, whoops!
How would it work buying car stuff and getting it back, surly you will have to package it all up properly and take it in the hold with you?