Where to leave our truck in uruguay or Argentina for more than 6 months ?

Hello everyone.

We are returning home for more than 6 months and are looking for a safe place to leave our truck in Uruguay or Argentina.

We are actually in Mendoza and our plane leaves in two weeks in Buenos Aires. If anyone knows of a safe place near Mendoza, Buenos Aires or in Uruguay not too far from Buenos Aires, your help would be really appreciated.

The perfect place would be a guarded place like a camping or a private home, that would charge something like 30$US per month for parking the car.

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