Custom photo printing theme?

I am looking to create a website to sell some of my photos online (not portfolio site). However I also want to offer a custom ‘print your own’ service. Similar to:

https://www.photoworks.com/shop/products/3177787?path=wall-art-canvas

I have looked at incorporating ‘picnik api’, but I am wondering would I be better to purchase a wordpress theme with some sort of image editing facility already built in? Is there such a theme already available?

My requirements would be that a customer clicks on a ‘print your own’ product. They can then upload a photo, edit (simple rotate, position etc), save, and add to basket. On completion of payment I then need a preview of the customer edit (to allow correct print), as well as the original high resolution image.

Currently all I can find is portfolio style themes which is not what I am looking for. I want it to be a normal product based website with image upload/edit attached to product.

Anyone have any suggestions?