Just saw a reference to a Peter Straker bootleg. Can't find any follow-up.
Would love to find out more information on this. I think I have gotten all his stuff on vinyl, but it would save me time if this the bootleg in question, if it exists, were digital copies of his records.
There is indeed an audience live recording of Straker out there. Recorded at The Kings Head, Islington on 14th May 2004. Straker sings Jacques Brel. It was shared here on QZ as well. Maybe someone still has it at hand, you could ask in the sharing forum.