Hello! I shall respond even though I can see that it's been a while since the posting of this request and I don't know if help is still needed. I don't have any experience, but I'd like to be of help: my English is quite good for a non-native (I have a CPE certificate if that's worth anything), so I would spot any glaring mistakes as a proofreader and I've been learning chinese at university level for over three years now (currently studying in China).