Nice shot of Don Plumb in CF-USA, 44-74850, Max Hoffman in N6310T #1, 44-74832 and I don't know who, in the Spit CF-RAF, TE308. That had been the two seat Irish AF 163, converted to single seat, but now is back to 2 seat configuration with Bill Greenwood. as N308WK
I believe the Mustang shown here was Sunny that crashed at an airshow in Malone NY about 1998 while being piloted by George Kreiger.
Don Plumb is in the Spitfire, Max Hoffman is in the number 2 Mustang and Connie Edwards is flying the number 3 mustang, CF-USA.