Is foil conductor painful to handle?

I really see a need for ultra-thin foil conductor in an interconnect design.
How delicate is it to handle, really?

I’d like to twist it into a consistent helix shape and run that through a fluoropolymer tube, just wondering if that’s pretty much impossible to do without special tooling…
Or is that achievable by securing it onto a vice and uhmm, gluing the other end on a screw driver and slowly twisting? How would I ever manage to keep it in shape for running it into a tube without crinkling? Coating it? With what? I don’t think it’s viable to melt fluoropolymers and immerse it. Madness!

Should I just forget this?