Personalisation feature for shopify store

Hi, We’re looking for a personalisation feature to be added to our product pages. We have already started to build one and would now like to improve it, providing per-product customisation. Here is a link to our current feature (click ‘add initials’): [login to view URL] Here is an example of the features we would want in the final version (click ‘personalise’): [login to view URL] Some more information about the features required. - Add a ‘personalise’ button above the add to cart button on the product page - Ability to allow the feature on some products and not others - Once clicked, a separate popup opens displaying the specific product image to the product/variant as well as help text and options for them to select their specific personalisation placement and information. - User can select the an option of two placements. Each option will have its own blank picture for the user to type their personalisation onto and see a visual representation. - On the back end, we will have the ability to choose the thread colour and font per style/product Currently we are using Accentuate custom fields app to manage our current personalisation feature. I’m confident the final solution will be able to build on the current work that has been carried out, we now just need to amend it and add a few more features. Looking forward to earring from you. Thanks,