Hmmm … I run CARDAS CLEAR too.
I would strongly suggest you rethink sliding down from the your high-end CARDAS array you have . It may -and likely will - dumb down the overall performance step up delivered by those. It is the SUM OF THE PARTS that drives system synergy, You get what you pay for,
here is a long length 7.5m run CLEAR REFLECTION speaker cables that meet your length requirements at less than half cost from new and he will consider offers