I'd recommend that you purchase Mono Amps & place them in close proximity to the speakers.
This would enable you to use SHORT AMPLIFIER Cables (Ideally 3 Ft. or less) & Long Signal Cables, Sound Quality of which are not significantly dependent upon length & can be purchased for a much smaller $$ figure, than Power Cables.
Assuming you are a true Audiophile, this will give you the best SOUND Quality you can get under the circumstances you present.
This would enable you to use SHORT AMPLIFIER Cables (Ideally 3 Ft. or less) & Long Signal Cables, Sound Quality of which are not significantly dependent upon length & can be purchased for a much smaller $$ figure, than Power Cables.
Assuming you are a true Audiophile, this will give you the best SOUND Quality you can get under the circumstances you present.