Add some functionality on an existing Magento store.

Basically, we have several changes required for our existing Magento store. I have a need for someone who understands plugin installations, software updating, conflict resolution, template redesign, and finally, some coding. The tasks are clearly defined, as is the budget and the work. Shouldn't be much work for the right person. Overview Below: 1. Update magento (version) and install security patches 2. Eway payment gateway (paypal and bank transfer already working on the website) 3. Different Pricelists for different customers. 4. Social media icons doesn’t appear on some browser and on mobiles and integrate new social media icons - css issue 5. Facebook has some height issue it’s not showing images of people who liked the page 6. On mobile some of the product images doesn’t work and it seems not aligned also shopping cart on mobile has some issue sometimes 7. Need to add a featured product section 8. SSL certificate needs to be installed 9. Prices include 11% GST already so please make sure that it will continue to work with eway payment gateway 10. Change product image on the main website