Some retail stores do resell to unsupported countries, check places like best buy or other similar stores. Otherwise i want to sell my old LCD 256 GB Model when the OLED Arrives, if you are interested i can sell it to you.

depending on the game you can manually install mods that do not have a workshop, for example Stardew Valley, you download the mods on nexus and install them in their respective mod folder and run them.

Its an bug with the internal clock, look up youtube how to fix this. You run a script that resets the clock to match the real time, you need internet access on deck for it to work.