Let me know if your "Custom payment email notification" requirement is still not fulfilled so we can deploy one of our experts to do the task.
I am a Shopify developer with broad web expertise and would be happy to assist. I'm looking for long term relationships with clients as this brings a strong sense of familiarity which translates to speed in development and ulimately money saved - a win-win for both of us. I can assist immediately now and on any other future maintenance or enhancements you may require. My primary consulting business web site is http://www.writeonweb.com
Please email back firstname.lastname@example.org and we'll go from there.
This is failry easy to complete since you can do this when you fullfill manually your customer order, a custom email can be created for this purpose. we can assist in this if this is not done already.
drop us a mail or skype on email@example.com.