Another Devere 504 user here Canada, I have the table top model with the condenser head. It's a great enlarger, been printing 35mm on it for two years now. However I don't have the 120mm crystal and the negative mask for 6x6. So even in a Commonwealth country I know I am on a quest for the holy grail.
Just make sure it has everything because this is the Aston Martin of enlargers and it will be the equivalent of owning an Aston Martin in say South Dakota.