2bbl weber problem

I just bought a aussie 250 and it has a weber 2bbl carb. . Problem is the float is messed up and noone can find a rebuild kit for it. Can anyone tell me how I can find one.The tag reads 84 DA TB and below that it reads A5 B 25.

The Weber 34 ADM is very similar to the Fiat 124/128/X1/9 carb