React.js profile pages, billing information view/update.

We are looking for a proficient React.js developer to assist with the build of a series of pages which will sit alongside a brochure website (already created).

End users should have a seemless experience navigating from our existing site (flat HTML/wordpress) to login, view and edit their profile, personal data and billing information across a series of react pages, for which we already have design wireframes.

There is an existing platform we will pull data from via restful API which has sandbox functionality and documentation.
The payment merchant is Stripe for which we would recommend integrating for pulling billing and card info to avoid unnecessary calls to the API (and PCI compliance issues).

A total of 10-15 'pages' or 'states' similar to the attached design is required for this phase of development.

Please indicate in your response, the estimated hours required and your availability for a call to discuss.
Preferred: UK-based, English as first language to reduce miscommunication.