@jdmitch can probably help. Or follow his step-by-step and fix it yourself:
https://www.lfgss.com/conversations/266985/?offset=375#comment12902856
imo not worth repairing - as others have mentioned alu welding in that situation is not hugely reliable and has issues, and sure to break again... I think it could be fixed by other means, but those are usually at least 40% for comedy value ;)
Can't believe you have lost faith man.
OP- drill either side of the affected area and bolt some steel either side- bike will outlive you then.
@jdmitch started
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@jdmitch can probably help. Or follow his step-by-step and fix it yourself:
https://www.lfgss.com/conversations/266985/?offset=375#comment12902856