Its difficult Paul. Most halfway competent folksingers could knock the lot off in an afternooon. But is that what you want?

To be honest I think some of the famous versions - Elsa Lanchester for example are pretty shit.

What you need is a proper artist to re-imagine them in the same way that Bowie did Brecht's songs. They were written quickly - so what is likely to work is someone understanding them and not giving too much thought to them - just doing them. Maybe getting one out of ten right. Looking for that happy accident.