Chashas, tell your friend to check out Shunyata.
Their 20A IEC connectors are like the AR ends in conformation - plug body is small and square. They also make a 20A to 15A adapter, allowing use of a 15A cord, but also serving the purpose of moving the plug body out from the back plate of the amp, leaving room for the fuse holder end cap.
Their 20A IEC connectors are like the AR ends in conformation - plug body is small and square. They also make a 20A to 15A adapter, allowing use of a 15A cord, but also serving the purpose of moving the plug body out from the back plate of the amp, leaving room for the fuse holder end cap.

