It's a perfectly fine price for the weights alone. Just tell him to also buy a bar. Realistically, he can do what others suggested and flip the bar on craigslist for $50
I bought some cheap bar on Amazon. It's solid enough at ~300 lbs (been using it for the last few months) https://www.amazon.com/Olympic-Barbell-Powerlifting-Weightlifting-Self-Lubricating/dp/B07DQ2ZSVY
Chile, yeah I'm pretty sure you are SOL. Likely the only thing you can get there is from China. If you don't have much money, it's not like any IWF bar is gonna be an option.
https://www.amazon.com/Olympic-Barbell-Powerlifting-Weightlifting-Self-Lubricating/dp/B07DQ2ZSVY/ref=sr_1_52?dchild=1&keywords=weightlifting+bar&qid=1610842233&sr=8-52 It does say that Amazon can ship to Chile but I don't know if you can get this bar to Chile.
If you're willing to risk it, you might be able to get a bar off alibaba if you can find an outfit that is willing to ship only 1 bar.