You didn't specify the platform or programming language or if you have an existing site.
Questions:
Do you have an existing site?
Do you have any data to import form existing records?
I have been developing for years, but new to Freelancer.com. This can be a really big project and surprised how low people are bidding on something like this!
However, I have a CMS I use that has a lot of these elements already, and I want to get some traction and history on the site, so I am willing to go with the flat rate as shown.
Thanks!