Just to agree with Surreysinger. The Facebook group, is a really useful asset.
I'm one of the administrators of the Group, and we have had some success.
And, while I'm on.
Take photographs of everything to do with your instruments. Serial numbers, Interesting features. After all, most people have digital cameras out there, So, 40 Pics of your beloved instrument has to be a good idea.
Also check out E Bay on a regular basis. (I still do for my stolen Fylde guitar 6 years ago, No luck yet though!)
I wish Mark well in his quest.
Please send him my best wishes.
Ralph Jordan