Would this work...?
Some years ago, stepson did the walkabout thing - Oz, Thailand, points east, and at one point - well away from any Brit consulate - had his docs & money stolen from allegedly 'secure' storage.
Fortunately, fussy parent syndrome had overcome his objections, and good colour photocopies of passport & trav. cheques had been taken and attested to by a Commisioner for Oaths. It gave him sufficient authentication to get back to Sydney from back of beyond: even airlines nodded him through, and Amex cheques were awaiting his arrival in Sydney.
Worth a couple of phone calls?