I'll go have a look at another Sunny to confirm what you say Phunk - but here are some photos 'as is' after being pulled from a Sunny wagon.
Manifold side engine bracket

Dizzy side bracket


I can clearly see in hindsight that the dizzy side bracket that was on the A14 when I bought it as part of the wagon was longer than the bracket I used instead - which was of a late A12 which was in the blue coupe when I bought it.
As both the engine in the 1200 and the engine in the Sunny were not the standard engines - I screwed if I know what mount is which.
Alll I know is that when I exchanged the late A12 dizzy bracket for the Sunny bracket it fit. Every nut is only on about a half a turn at the moment so all looks wonky.
I'll tighten it up tomorrow and see if it does fit straight but by eye in the flesh it seems like the right fit.
I'll try and remember to take a pic of the sunny bracket and 120Y bracket (dizzy) side by side.
All the comments have been much appreciated as always - gotta love the Datto community.