Need help looking for a PHP or Wordpress Solution, your recomendations

Looking for something specific could be a daunting task on Envato Market, the results might fall into one of the categories, but just that… close. I’ve been searching for a solution for payments queries, The company that I work for has a transparency policy, there is a section where anyone can check the salary information and all related to that employee if you have the ID number, under the same umbrella they also have legal documents related to trials and such that can be searched under case number, case name and attorneys or any other search criteria, What I need is a solution to upload, archive and search results based on search criteria that could be adapted to that in PHP or to wordpress.

Any suggestions?

The address to that form is:

can we talk about this wp project…add me on skype for fast conversation farhan.khan1968