Django Website

I have had the basics of a website built, but my programmer has now gained full-time employment (and is working long hours) and can nolonger support my website. There is much more to do. I run a printing company and my website provides a portal for my customers to order their print online. My current site is www.adelphi.net.au. In phase 1, I would like to add SEO and improve my google ranking, links to my social media pages, redesign of pages to add images, add new pricing functionality, redesign printable invoice. Add a "subscribe to newsletter" link. I would like to be able to download the customer details to excel, or maybe have the ability to send a template based newsletter to all customers in the database which I can amend each month. Any further advice on enhancements would also be appreciated. Phase 2, add the ability for customers to design their own business cards online using some pre-loaded templates (see website [login to view URL]). Once this is complete I would like to expand to include maybe some simple brochures, again using a pre-designed template. Please bid on just Phase 1. I would like to get the site fully operational and user friendly, and also start generating some business before moving onto phase 2.