Official M2 schematic

This is just an example. Use thin as possible and as wide as possible.

https://www.amazon.com/dp/B018RDZ3H...d_t=201&pf_rd_p=1944687442&pf_rd_i=B0000WRJIO

Idea is that all frequencies arrive from one end of the wire to the other at the same time.
Applies to thin solid wire and foil.

Double sided 2 inch tape is expensive but the foil has a a sticky side.

Check out wire wrapped wire. Cheap and sounds good. I've made speaker wire with it.
Great for signal wiring too. Does take practice to strip off jacket without knicking the wire.