Hey Mark,
I'm a bit of a tinkerer as well, I looked at the ready made cables and they are way overpriced for me too ( or a lot of people really )
I ended up ordering a 50mt roll of 12awg ofc with in wall jacket, banana plugs and cable braid to dress it up, ( I know this is just asthetic , but hey, anything to jazz it up )
Saved a bundle, and it kept me occupied for a few hrs
And I think it does sound better, that's all that matters I guess , , , ,