Few changes to codeigniter project

Hello freelancers, I have a project nearing completion and just require a few changes and some functions creating as follows: 1. Need some extra OG data adding to the meta. 2. Where currently there is no image being displayed for various items I need a dynamic "[login to view URL]" to be shown instead. 3. I have a custom CMS already built, part of this CMS allows me to upload PDF's to various items. I need these PDF's to be downloadable from the frontend. 4. Ensure that 404 errors are created correctly for all pages. 5. Ensure pagination is correct on all pages (currently it all works fine but the url for one instance is wrong - it should say /page/2/ and currently it says /2/). 6. Need to add a list of categories that news items are assigned to as tags under the news item. 7. In footer I need a dynamic navigation (similar to main navigation) that only shows items selected to be shown in the CMS. 8. Add a contact form to the contact page (by creating a contact model) - This must be done in the same way as other models/pages. 9. Limit the news feed on home page to 8 items. That's it! All really simple for the right freelancer... I'm more than happy to elaborate with you before assigning the job if you require more details. You will work on my server. I need this doing immediately please and shouldn't be more than a few hours work for the right person. No milestones in advance, I pay once everything is completed and tested. Look forward to hearing from you. Thanks, James.