Amplifi is designed for non-tech people. It's Ubiquiti's consumer line (they make various enterprise and ISP-centric networking stuff). But if it's out of your price range, then it's out of your price range.

You could buy a Raspberry Pi for $35. It's a Linux computer about the size of a credit card. You could set it up to be an OpenVPN server and connect to it remotely. But this will require some tech chops...