Regretably the money is not available - for a very simple reason.
Between July 1999 and March 2002 Mr Brown sold off 395 Tonnes of Gold at an average price of $275.6 per ounce. The current price (at 1200Z) was $856.3 per ounce.
A Pension Fund Manager in the City who presided over such a deal would be looking for a new job - he would not have been promoted to run the entire Company.