I'm not a Bukowski fan in particular, but I have worked as an editor, and I can't imagine any writer I've worked with accepting that kind of heavy-handed rewriting of their works. For myself, I never tried to rewrite an author's work, generally the idea is to try to get the writer to do the work and follow your feedback willingly. When the writer is deceased you have fewer options, but I think you pretty much have to accept it as is, and say, this is what we have.