Cables for Proac, Rogue

I am looking for speaker cable recommendations for Proac 3.8 and Rogue M-150 monos. Currently using MIT MH 750 bi wire. Interconnects are Harmonic Tech Truthlinks. Looking to spend $800 or less new or used.
Also looking for power chord recommendations for these amps. I realize not many people have the 150s yet, but what have you had good luck with on your Rogue m-120s? Thanks, Jon