Hello,
this is a fair mid size project can take 18-20 days.
the reference site it nice but can be better, ill use PHP, MySQL, JQuery, HTML5, CSS3, bootstrap or polymer to build the site.
will show you the UI/UX design in a week and give you the final project in next 10days.
support for 6 months will be provide for only bugs and rectification new function after 15th march will add extra charges.
if you like the proposal then msg me on chat.
Thanks
Meeshal k