Hello! I'm sure I can help you with this job, as it is mainly what I've been working with for the last couple works I accomplished. Please check my profile to see my previous employers are all very satisfied with the work I delivered.
Specifically in your case, I'd need to know the website in order to correctly estimate the development costs. Once we talk, I'll investigate the site and how it handles data. I won't charge you for doing this work. Then I'll show you exactly how I plan to do it and we can get to the best deal for both of us.
I'm a computer engineer with more than 12 years of experience in PHP and database management. I always work to deliver solutions having both quality and time constraints in mind.
Any source code generated will be delivered, along with support and explanations about any doubts you may have. This way, you'll be able to adapt the solution to your needs any time you need.
Please keep in touch and let's work together.
Best wishes!
Alex.