Finding one complete working assembly in the breakers yard is virtually impossible in my country - simply because they are rare.
The young mechanic who broke it has now resigned from the shop I bought the blades from.
However, the management has agreed to source a new assembly for me...this would however take a couple of days...which isn't good, considering its rainy season. Definitely a lesson learnt from this experience....
The thing that surprised me most was the ease of breaking this plastic bracket. I was previously working as a stress analyst in an automotive consultancy, and I know other cars usually mount the entire assembly on the body in white, with the wiper arms sitted ON the cowl inner panel. I was shocked to see how Alfa engineers could've designed such a flimsy system....having a rather thin and brittle part supporting the weight and other loads on the wiper arm.
Most importantly, I'm merely sharing this rather costly experience with u guys. So, when changing wiper blades, please do be careful when removing the old ones. The clip can be a pain in the a55 to detach from the arms, and u need considerable downward force to disengage em. This has the tendency to apply the same load on the bottom of the arms, which is attached to this flimsy plastic bracket.