Magento Module Customization

We just purchased the Cart2Quote Module ([login to view URL]) and we are trying to customize it so our sales people can use it to make quotes from the admin panel and send out PDF quotes. We need a few adjustments so it fits our needs: 1. We are having problems adding images on the admin panel. We need to be able to add and access files that are attached to the products. (example. an order is entered, and a layout for that order is mocked up - our sales people have to be able to put that file in with the order, and quote - we don't need to view that image on the front end, we need to be able to download it.) 2. We need to customize the PDF that gets sent. (the font needs adjusted, add the customer name AND the company name, we need to put the billing address - not just the shipping address, and we need to attach the image above, if possible adding image to the same page). 3. The email that gets sent needs to have the admin user who the Quote/order is assigned to as the email address they should contact - right now it goes to the Sales representatives email(and that means just one email instead of who actually set it up. 4. finally the PDF that is being sent is Huge(1.9 mb), I believe this is because a font(libertine) is being embedded. I think this is an easy fix. I believe all of these fixes are pretty simple for someone who knows their way around magento.