CS-CART 4.6.1 Customizations Required for Shopping Website using VIVA SHOP Template -- 2

I)COD payment option should show by default to all customers even if the zipcode field is empty and once they enter the zip code the ajax should work and check. COD Available or Not / Prepaid available or not shouldn't show in ADD TO CART Page. 1) In case billing & Shipping address is same a) Zipcode is available in the COD List It should show the COD payment method. b) Zipcode not available in COD list it should DULL the COD Payment method and it should be unclickable. Below that it should show a message COD not available for the available pincode. 2) In case billing & shipping address are different (Then the cod checker is Shipping Address Zipcode dependant) a) Shipping Zipcode available in COD list checker - It should show the COD payment method. b) Zipcode not available in COD list - It should DULL the COD Payment method and it should be unclickable. Below that it should show a messade COD not available for the available pincode. II) Only on Mobile/Handeld Devices - ADD TO CART AND BUY NOW BUTTON should be sticky like flipkart - [login to view URL] III) Only on Mobile/Handeld Devices - STICKY HEADER IN MOBILE/HAND HELD Devices exactly same like unitheme with cart logos and human logo and product category dropdown and searchbar everything identical like unitheme except color - [login to view URL] IV) Only on Mobile/Handeld Devices - Add to cart button (when clicked adds the product to the cart) with wish list button under every product and select option button(when clicked takes them to product view) incase of variation with wish list button - [login to view URL] V) Product view page on all devices desktop / mobile / handhelds - Remove the top product code row and show the product code beside write a review center aligned for both mobile/desktop website and also show 4/5 thumbnails with arrow buttons on mobile website in products having more than 5 images - [login to view URL] Apart from the above minor edits, a few minor customization here and there will also be done. Need someone experienced. Quote me the lowest price possible thanks a lot.