Welcome, Nueces5! I remember a "Nueces" fom boolits but I think he lived near me in Texas, on the Nueces river. Most of us are scroungers and are frugal by nature if not necessity, so in many ways the hobby is the same for us regardless of country or climate. I used to follow a man in eastern Africa who did amazing things with cast shotgun slugs loaded in factory birdshot hulls because only shotguns were allowed and only birdshot cartriges were available to buy. No powder or primers. Improvisation at its finest. We find ways to do what we want with what we have or can get, which is part of the fun.
Are you acquainted with our friend Mike in Peru who is a missionary from the USA and avid cast bullet hunter? I believe he lives in Arequipa, considerably north of you up the western coast.