Hi @Blm216 ,
We make custom Shopify apps. I think we can bundle the entire solution in an app that would improve your process. The customer emails you could modify within Shopify or we can disable them and send your own through the custom app. For the order print sheet I would have to see what it looks like, if it does not exist the app could also produce one for you to print off.
Custom apps take 8-16 hours and could be installed on your main shop within a week. Contact me at firstname.lastname@example.org and I could explain further in technical and pricing.
Sam - Owner
There are couple of options available for you. I'd recommend looking into the apps Informly or Smart Order Notifcations for apps that will provide you with easy to make templates that you can customize to your specific needs.
If there is anything else I can help you with, please let me know.