520ST short external PSU case

Case to place a Meanwell PSU to create a 520ST compatible external PSU. Need a three voltage (+5v, +12v, -12v) to fill it with. Designed specifically for either an RT-65B or RT-50B meanwell PSU. Also need a 7 pin female DIN port and a kettle power cord input port for a standard 3 pin mains plug.