Hey Nick welcome to the states, hope y'all have a great time!
If you looking at things you can pack in your suit case, here is some I would think will work.
Fuel filters, inline and fuel pump sock.
Fuel pump
Fuel injectors as well the throttle body rebuild kit, throttle position sensor, Idle air control
ECM
Distributor cap, rotor, pickup coil, wires and plugs
Transmission filter
LED lights?
Just a few things that come to mind!
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Chris & Brenda....................cMADMAXman
AIR Member 12654
1991 350LE "Zephyr"
1982 310 MoHo (Sold! New home, NYC.)
Many Years ago, 1972 Argosy 24' trailer
Toad, 2001 Chevy Tracker 4x4