Hi There,
i have gone through your project description and understood your requirements properly although to be able to tell you proper estimated time duration on your project i would be needing FRS(Functional Requirement Specification) and also the link to your existing website .
After i have these information , technical person will be analyzing your site and will give his feedback as well and then your project can be divided in phases for proper demonstration .
If you could just drop me a message on freelancer chat then we can have a detailed conversation about your project and can start right away also if needed .
Have Worked with successful and experienced team of developers who have experience in Wordpress, Joomla, PHP , ASP.NET , Mobile Applications , Python , software and website development and can start the project right away also if needed.
hoping to hear from you soon !!
Cheers!!