Pocket Money (1972) on Netflix

Jim Kane is a loser cowboy in Nogales, Arizona.He has more good nature than good sense and often takes jack-of-all-trades jobs. His bank loans are jeopardized when his latest horse purchase is a bust. His horses are quarantined with STD. Jim is broke. The local hotel clerk sympathetic about his situation lets him live in the hotel maid's room for free. His ex-wife goes gentle on him when he cannot make the alimony payments. Jim turns down his uncle's offer of a job but accepts a deal to buy cattle in Mexico for a shady businessman who has a bad reputation. Jim travels to Mexico where he teams up with another loser, an old friend by the name of Leonard, who moved to Mexico in order to pursue one of his many failed get-rich-quick schemes. The two amigos set out to buy Mexican cattle from various local ranchers but they experience difficulties and soon run into trouble.