All lights and indicators working inc fog and reverse but no brake lights, Occams Razor ? burnt out switch. ? It is 16 years old.
16 years old? The car or the switch? 16 years ago was roughly the transition period for the brake light switch system the MMC had been using for a half-century.
You will find yours here.
https://www.gomog.com/allmorgan/brakelightswitch.html#RECENTL