To make it short... in January and totally out of the blue Jamie contacted me on her own, apologising for her lack of repsonse and telling me, that she was almost done. I was sceptical and hesitated to burst out of joy that my money wasn't lost after all and indeed her mails over the following three months were scarce and there were many delays, but... finally... last week my sketchbook has arrived and she has added another one from her private older collection to it.
I thought it might be of interest to share the outcome of this matter with you.