Thanks very much Jack. 
I certainly wasn't expecting a response like that.  
The project only became a goal about twelve months ago after I'd finished the 17". They took a bit of hunting down. The 17" and an edger attachment came from Toowoomba in Qld where I live, the 14" from Texas on the Qld / NSW border, and the 20" and an edger from WA and the 3rd edger was from Tasmania. So as you could imagine they've cost me quite a bit of time and money. 
Each mower has its own little interesting story to tell from their previous owners.