PHP script: update webpage automatically with details

I need a solution to a website I plan to develop soon, where a user fills out fields (name, email, phone number) and tick boxes, which then generates a automatic, non moderated listing on another page which is determined by location of the user (as chosen on the initial form).
A result is then returned to the user to see if any provider/company (who also registers through a different page) matches their criteria.
So this is effectively a website where people are looking for a someone to provide them a service, they leave their information on the website automatically and they receive information if they get any matches.

For both the user and provider, the initial form will have approx 20-30 tick boxes and several data fields to be filled in.

Can you please give me an idea of time (hours) it would take to develop such a project.
Many thanks!