Asked hin, made the payment (very fair pricing), and a bit later I got the files. I could implement the off canvas navigation without any problems.
I should mention that we did not give any admin/ftp access to Audentio (we are generally not doing this). So they had to work with what they saw on our site, which was no problem for them
So I can really recommend Audentio / Mike Creuzer for cumstom work