Impulse RS (Piaza Pa Nero) camber arm replacement p/n

[Legion]

I am an owner of JDM 1992 Isuzu piazza pa nero which is similar to impulse rs (1.6 turbo 4wd).

I had an impact that damaged camber arm (photo).

I usually use rockauto parts catalogue to find GM replacement parts but in this case I did find nothing.

Please help with original part number or replacment.

Thanks in advance.
Ivan