1. Theme integration and customization.(Premium or Custom template)
2. Create and customize components.
3. Create and customize modules.
4. work on all the versions of Joomla.
5. Suggest you better and suitable plugins that will enhance your sale.
6. Migration from one server to another server without any kind of hassle.
7. Integrate search engine friendly urls on the site.
8. Ongoing maintenance.
Please contact me for the pricing of above mentioned features.
Note : I can only recommend you suitable theme in $5 amount.
Thanks for reading!!