New wheels on my Fargo once I reach the Pacific West Coast?

Planning on flying to Vancouver in late March / April with my new 2023 Salsa Fargo.

I want to cycle the west coast for around 3 months (til visa runs out), then continue to Baja, cross into mainland Mexico and further down in Central and South America, eventually reaching Ushuaia in 1,5-2 years, maybe 3.

It’s stock drivetrain 11–42t SRAM Apex1 and original wheels.

(I might to Vittoria Mezcals, and go tubeless before I leave)

Would it make sense to upgrade somewhere in the U.S. before entering Mexico, something with more range/higher quality? Maybe SRAM GX Eagle 10-52?

I read that bike components are expensive in Latin America, but my wheels and drivetrain would only have maybe 4000km of wear by then.

Or should I just drive my components to the ground and try and replace later on, wherever I end up in central/south america?

I’m not a bike nerd at all and new to bikepacking.
If/when I need new wheels and drivetrain I would need a bike shop to do build wheels from and install drivetrain, cause I’m not that savvy and I’m just bringing basic tools.

What is your advice/thoughts?

I like the idea of using what’s on the bike already cause simply upgrading already new components is maybe a waste of 💵💸 But it might be more expensive later on.

Thanks 🙏

by Bikingabroad