Is it really important for your VPS to be physically located in Venezuela? I don't know about Internet providers over there but you will require a stable and reliable datacenter to put your VPS in, which includes security, electrical backup systems, 24/7 technical on-site support, HVAC, multiple optical fiber Internet providers, just to mention a few common characteristics a datacenter should have. If you don't have a feeling a datacenter in Venezuela can provide you with this, I would recommend you to go for a US located datacenter.
Of course, if your server application is not very important you can always take the risk.
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Some local telecommunication companies do have datacenters and offer hosting services physically located in your region, Telmex Colombia for example offers corporative solutions like colocation and dedicated servers, maybe you should try contacting those companies to know if they offer what you are looking for
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