If it is possible to get computer parts (including modern GPUs) on the local market, setting up a mining operation could be very profitable. But I guess the lack of electronics is why you want to shop from the US in the first place.
As others have already said, providing online services for bitcoin is probably the best way to get them. Are there a problem for Venezuelans to use a paypal account or similar to recieve payment for such services? If not that would probably be easier than using bitcoins, at present time.