Bad idea?

yes, it's a good idea

I would take the advice of others here and buy a kit and build your own cables.

Or buy the cables that @hilde45 has offered, Analysis Plus cables are top shelf stuff. I use their interconnects on one of my systems. I prefer ribbon speaker cable.

Another vote for Blue Jean Cables, and I have done this very thing (cutting in two) on several occasions and reterminating cables myself with banana plugs.  Not hard at all.

Often times my fellow human beings bug me. So it's refreshing to see so many of you taking the time to be helpful. Thank you!

@soix Thanks for pointing out the AZ cables. I'm very tempted. Indecision is holding me back. I borrowed Shunyata Gammas and Cardas Persecs from the Cable Company. I think they both sound somewhat better than my old Cardas Quadlinks and Monster Powerline 2s. But I was expecting more. I think next I will borrow AZ from CC. Don't ask me why but Analysis Plus is calling out to me. Must be something I read somewhere. Thanks