WordPress plugin - Bulk jobs upload plugin

The project is to create a plugin for WordPress theme JobRoller. The plugin is require to batch upload jobs from a xls file, find attached the sample XLS template for your reference. I dont have a lot of budget so i'm open to any suggestions to get it developed as cheap as possible. Once installed: The plugin should show on the right side of the admin panel only, and should have the option to download the template (attached XLS) and upload the file. Once the filled file is uploaded the plugin should load all up and show them on the screen before publishing them. Check boxes against each job in order to select any particular job and a delete and publish button at the top and end, in case any particular job in to be deleted or published. Once published all the jobs should be published or scheduled to publish with respect to the publish date in the template. Lastly, The jobs which are published through this plugin should have an automatic text/link added at the bottom left (*** Plugin Developed by ***). I want this to be in tiny font, hard coded so that can't be removed. Optional feature: I'd require a paid feature. If anyone wants to remove the copyrights at bottom of the jobs. Again as simplest as it possibly can, they give me the name, email and verify the domain URL itself, and i can generate a key for them which they can use to remove the copyrights text/links. Something like Name: ABC DEF Email: XYZ at [login to view URL] URL: [login to view URL] The could by the first two letters of name+First two letters of email+domain(excluding post dot portion) Key: ABXY1234 This is just my assumption again i'm for suggestions to make it as quickly and least costly as possible. *** At the end of project, the code is my property and i've all the copyrights for any future changes and modifications***