Magento Size buttons and Styles tabs & some other stuff

Our T-Shirt company website currently offers t-shirts in different styles (short sleeve, long sleeve, hoodies tank tops, mens, womens, kids) and every size. Below is what we need done. - Currently our size selection feature is a drop down menu. We need it to be clickable size buttons that change color after selected. - We need gender Style tabs added above our color swatches which can be selected. When someone selects that tab the picture which is linked to that tab will display. example. We upload 3 pictures, one of a man wearing the shirt, one of a woman, and one of a kid. The new gender styles tabs will have Guys, Girls, Kids, babies. When someone click the "Guys" tab it will display the picture we uploaded of the guy wearing the t-shirt. - Below that we need another set of tabs " which will have a picture of a short sleeve t-shirt, a long sleeve t-shirt, a tank top, and a hoodie. If someone selects the Hoodie tab a picture of that guy wearing a hoodie pops up, so on and so on. All this must be simple for us to add pictures under in the product admin images section. We want the tabs to look similar to [login to view URL] - We have Free Shipping over $50 which we set via the basic module free shipping feature. When someone adds a t-shirt their shopping card that cost $20 when they go in their shopping cart we need a message which says "You are only $30 away from qualifying for Free Domestic Shipping!" The $XX amount needs to be based off of the basic magento free shipping module. - Our website currently had a white background. We need a repeatable background tile installed which we will provide. Thats it. Please message me if you have any other questions.