Build a website

Hi we are a startup in food tech and already have a website in opencart, we just want to have few more updation in it which include adding few menus , making it more attractive by changing home page and product page and doing SEO . we expect the project should be completed in max of 12 days ( including testing the changes done) .we have a very low budget please let us know if anyone is intrested . website link is [login to view URL] Max budget - 5 k