Additional design and functions added to current shopify website

Hello, My name is Natalie and I manage one of our accounts websites www.shoptheworldhotel.com. TWH is hotel inspired luxury collections of bedding and bath goods. We are generally pretty happy with the site, but would like to change the layout and functionality of each individual product page. check out our website and see how the current layout and general process is for selecting an item and checking out. what we are looking to do with our site, is very similar to the link below: [login to view URL](5) You can see on the Macy's page from the link above that each item within that collection has its own 'item selection' with a QTY, AMOUNT, ADD TO CART tab per individual item. We do a very similar style, where we showcase the full collection but sell each item within the collection separate. So we are looking to have the option of listing each item within the same product collection page that also always for the customer to select the qty, size etc and add to their cart without automatically taking them straight to their cart after selecting 'add to cart'. Is something like this possible to add to our page? what would the cost for something like this run, and how long would a job like this take? We are also waiting to relaunch the site once we have our mattresses complete and looking for a November 1st relaunch, so the sooner the better! I look forward to hearing from someone soon Thank you Natalie