Web-to-print interface

I am building a website in which i sell custom printed items (mugs, metal key rings, water bottles, plates, mouse pads, slates, tiles, pillows, etc) by the process of sublimation printing. i would like my customers to be able to personalize (by adding their chosen text & pictures or by using pre-made templates with customizeable parts) and see a realistic preview of their design on the selected item. When the order is issued, a printable file is sent to be processed without any modification. The best example of what i want is the customiser on zazzle.com. I am making my website using Wordpress and for the shop i'm using Woocommerce. i found 2 or 3 plugins meant to achieve that goal but they either wouldn't allow me to add my own products or they were not translatable (yes i need it in french) or very mobile friendly. Either way, the previews were not realistic enough ; pictures would not stick to circular objects like mugs or uneven surfaces like full printed plates. they are just overlayed on top of whatever item was selected. this would be my ideal customization interface : [login to view URL]