Another scenario: make your own. Buy a long run of 8 or so AWG, double-shielded, Belden (or whatever the local rat-shack can propose). Buy a hospital grade IEC and wall plug. Looking at the IEC with the ground on top (apex of the triangle, so to speak), the right connector is "live". Check out the live on the wall outlet and the corresponding pin on the plug. Connect IEC -> cord -> plug accordingly. Make sure all wires are WELL CONNECTED and are NOT TOUCHING each other. It's simple really!
At best, you have a reasonably performing power cord. At worst, you'll have had fun!