Considering using Shopify for my eCommerce solution. Most of my customers will be paying on terms (net 30). I need custom programming to provide a payment option of "Bill Me", which if selected by the customer would generate a detailed order form and email it to my business. We take the order which is emailed to us via Shopify and input the order into our CRM package, which bills them. We will use standard Shopify credit card functionality too, although few of my customers will use it.
I need a ballpark quote please for the development of the "Bill Me" payment option with Shopify. Needing quickly.