Add button to product page in Shopwired

We are looking for someone that has experience of working with the shopwired.co.uk platform and templates. We are looking for a clickable shipping button to be added to our product pages which will display on desktop, tablet and mobile pages as shown in the attached images (we have already designed it, as shown in the images). We can supply you the button in PSD, PNG and Jpeg format, you would just have to resize it to the correct size.

We would like the button to be linked to our shipping page, and to open in a new tab.

Once the project is done, we would like to be shown where to access the button and link within our Shopwired platform.

Please let me know the total cost for the job.