Classipress Theme Modification

I already have a working/live website that uses wordpress with classipress theme (by appthemes). The theme has been modified a bit already. I need following to be done on this website - The website is for talent promotion where users post their profile with images (basically it's a classified ad listing) in particular category. On the other hand the admin posts the assignments in casting calls category. In the casting calls category there are meta fields like website address, email, contact person etc. Only logged in users with active ad_listing are able to view these details. This functionality was added by one of the developer earlier. At this moment if a user (active member) wants to apply for this assignment he has to copy the email id mentioned in the details and send email from his email client separately to the company for applying to the assignment. I want that the user should be able to email his listing details and images (that are attached to the active ad_listing) directly to the company by clicking "Apply Now" button on the assignment page with a small message, a link to his listing and a link of the assignment being applied for. Copy of the email should be sent to the admin as well. A database entry has to be done about the assignments applied by each user which should be accessible to the admin from WP control panel with search and sort functionality. If the user has 2 or more active listings then a popup should ask to select the listing to be mailed. Once applied, user shouls also get a email that he has applied for this particular assignment. The Apply button should remain on the assignment with a message below it mentioning when the user applied for this assignment earlier. We need to display how many users have applied for this assignment on the assignment page (like a counter). Please suggest if anything more can be done to make it better. Finer details can be discussed on chat. Please mention clearly on how many classipress (by appthemes) projects have you worked with their links in your quote introduction.