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I cant really order from SLS as its mainly in German and I cant read that.
You could try Gernold at SL-Tech for a used part. Or perhaps, if there's space, try rewelding then welding on a doubler plate over the first weld.
There is an option on the SLS site to click on on the British flag and it translates most pages. SLS is also VERY helpful over the phone. When they answer "Guttentag" and you respond "Hello" they will continue the rest of the conversation in English.