The Tacoma is alot bigger than the Toyota pickups we get, think its made for the US market probabily not alot of expertise here and not sure of parts availability.
See if the same model truck is sold in the countries you are visiting , if so parts availability should be good.
In the end for any truck , almost anywhere, DHL (other carriers are available....) will be your friend for shipping parts in.
Iveco Turbo Daily 4x4 'Thumper'
Isuzu TFS69 Pickup 'The bakkie'
Ex Owner of Tiggurr The 101
"And that road rolls out like a welcome mat
I don't know where it goes but it beats where we're at
We always said someday somehow
We were gonna get away gonna blow this town" --------- Lonestar