Short runs of flexible power cord?

Power cords are simple to make and simple to resize. Unless yours has a sophisticated molded end you should be able to cut to size a re-terminate. In less than one meter I doubt you will hear any difference in any cable you buy as long as it meet the specs for current delivery and EMI/RFI rejection.

I choose to use a support as mentioned above by several others,(nylon tether).

Your amp has a small power draw. It's not like those big power hungry amps. Maybe try a lighter gauge cord.

ZU Birth comes to mind. I use one on an Odyssey amp in a tight place and hear no difference from a Harmonic Tech 9 that was on it in another setting.

Thanks to all. Due to lack of space in shelf behind unit, I've discovered using a short cord would only compress cord at both ends due to acute angles required for clearance, so my approach will be using flexible cable. Will check recommendations Thanks!

ZU birth is super flexible ,angle irrelevant and a known performer