Build an Online Store using Spreadshirt.com API

I have a t-shirt shop. I need a website designed. I have a domain already. I use Spreadshirt to sell my t-shirts. They have an API you can use if you need? I'm not sure, but I want something similar to snorgtees.com. Take a look at it. Square pictures of shirt designs. When you click one a page opens with a large picture of the shirt and some smaller ones underneath. We'll use the stock pictures from Spreadshirt for now, but in the future I will swap those out as I get model pictures. I'll need a way to change them. Layout should be similar to that website. I will give you a logo.. you put a placeholder for now.. you find or make some kind of interesting background, colorful but not too busy.. top will have About Us, FAQ, Contact. The FAQ info which we'll take some of it from Spreadshirt such as returns, what the shirts are made of, etc. Need to be able to add things to basket and checkout with Spreadshirt.. but can it be made like it's all on my website? Left side will have t-shirt categories.. such as Television, Music, Lyrics, Bacon, whatever I decide. Under that I'll have Find Us On Facebook with a link. I'll need a way to add more shirts or adjust categories when needed. There is a few wordpress plugins, but I didn't like the look of it.. that uses the Spreadshirt API. Maybe that can be customized?