You might email greggstraley@yahoo.com who custom manufactures customer required lengths of speaker cable of the highest performance, yet at a reasonable cost.
One simple way to do this is using three pairs of speaker cables. Then, there is no problem re-arranging for future system changes, or possible future sale of cables. They are so good, I doubt you will be selling in future, but you never know. As a price benchmark, I use eight foot pair listing for $180, and I believe in your case there would be a discount for purchasing a package of speaker cables in the lengths you require. I know he has made runs even longer than those you require.
I have successfully replaced more expensive cables with those made by Gregg, and he is easy to work with.
One simple way to do this is using three pairs of speaker cables. Then, there is no problem re-arranging for future system changes, or possible future sale of cables. They are so good, I doubt you will be selling in future, but you never know. As a price benchmark, I use eight foot pair listing for $180, and I believe in your case there would be a discount for purchasing a package of speaker cables in the lengths you require. I know he has made runs even longer than those you require.
I have successfully replaced more expensive cables with those made by Gregg, and he is easy to work with.