Hi,
I am a Magento developer from Vietnam. I have been working with Magento for more than 4 years. I can write extension, theme and customize Magento as your request.
I have read your requirement carefully and I am interested in it. To prevent emails go to spam box we should setup SMTP instead of using the server email, and I can do it very quick. I will also help you translate all the transaction emails you want.
I am looking for a long relationship, I really want to help you and build your great store. Please let me help you, I will be more than happy to do this job for you.
Regards,
Jimmy