Hello, How are you? I've read your project description and I can revamp or redesign your existing website through wix as per your requirements. Do you have any reference design? .Let's have a quick discussion about the project.
We have extensive experience in designing and developing Portals, Web and Mobile application, E-commerce in all major platforms, etc.
I am sharing our portfolio with you have a look,
https://www.freelancer.com/u/junkyfunky
Thanks,
Faizan