Just go to the local market and buy eggs, go to the market and buy “chiccharon pensado†(pressed meat for chiccharon, more meat heavy). Get arrachera on the streets, even bone marrow! And the crispy crunchy chiccharon to scoop up your meat.
Also a lot of places sell cooked cochinita pibil by the kilo!! (2.2 pounds of meat). Makes life so much easier, and to get enough of your meat and protein intake! And just do chin-ups at the local park.