I do not know your definition of silly expensive is, but the Harmonic Tech's Pro AC-11 power cord is the best bang for the buck solid core copper power cord in the market today. The newer version comes with Furutech's high-grade ends and cost about $120 for a 1M in the used market. Older version with Hubble AC plug and stock iec can be have for $100.
Don't waste time on others.
Don't waste time on others.