For cabeling I would try these very reasonably priced.
https://www.dysonaudio.com/collections/audiophile-speaker-cables
As for amplification I would jump on this from experience those Focals sound magnificent when driven with Pass class A power. No Affiliation with the seller of the Pass Labs amp.
https://www.audiogon.com/listings/lis8f63d-pass-labs-int-60-excellent-with-box-solid-state
Chuck
https://www.dysonaudio.com/collections/audiophile-speaker-cables
As for amplification I would jump on this from experience those Focals sound magnificent when driven with Pass class A power. No Affiliation with the seller of the Pass Labs amp.
https://www.audiogon.com/listings/lis8f63d-pass-labs-int-60-excellent-with-box-solid-state
Chuck