Design a Website Mockup

We are looking for someone to design an e-commerce store so that we can sell our social media stickers online (the stickers have already been designed). This is a design only project as we have a web developer who will build the site and back end order processing – but absolutely cannot do any form of design! Therefore, we require the front end to be designed and handed across for him to build. (I assume layered PSD fully tagged)? The sort of sites we like are the full width WordPress themes with large images and headlines with a very clean style with nice typography. Nearly all e-commerce stores follow a certain style of user journey and below have written out our ideas of what we like but are very open to suggestion and thoughts on any aspect as you see fit. Finally, due to a poor past experience, we would insist on speaking on the phone before going ahead. Thanks, Stephen.