You need to find someone willing to walk though the process to see if screen printing is something you can and want to do. The US is full of barely used equipment cause people jump in head first without doing any due diligence. Maybe find a few day course. You tube has many great videos. If your needing short runs your profit will be very low if you hire out the printing. There are a lot of variables you need to work out space needed, cost, learning curve.