Faking a string instrument?

THE_ELECTRIC:
I'm working on a project that attempts to remake a string instrument (roughly the physical shape of a cello). Right now I'm looking for a way to simulate "strings".

Basically, they just need to be long (around 2ft) thin sensors that detects where a person's finger press is positioned. Best case scenario they can also detect a second contact for the bow's collision. They AREN"T actual strings that vibrate to create sound.

I've looked into potentiometers, but they're a bit thick to fit on a instrument neck and I feel like a long wire would seem fitting? Something physically flexible would be best.

Interesting idea, but sounds like no way to make it work in the way we would like it to work - due to those physical factors (or maybe lack of physical factors ---- due to physical bits (components) being removed that would normally make real strings work in the way they do). Like, sounds would certainly be produced, but likely to be glitchy.