Brian Woodford's Lizzie has apparently gone to the USA. It had a lot of problems with the engine until ARCO spotted a flaw. Then it flew brilliantly!
The
Sabena Old Timers Lizzie flew for a few years but suffered accident damage and is now being rebuilt for a second time.
Think there is also a flyer in Canada.
Duxofrd had a formation of three (Woodford, SOT and Shuttleworth) on several occasions - plus the Blenheim and Gladiator, at the time all of the world's airworthy Mercurys I'd suggest (the Finnish Gauntlet has a P&W or Wright engine I believe).