Add a feature to a 3rd Party Joomla Com

Need a modification to a 3rd party Joomla Component We have paid for a script to use in JOOMLA that allows for us to take donation on our website. (We will supply you a copy of the COM). We want to add a feature between the data entry page and the confirmation page that, if applicable, gives the user the option to select a "Thank you gift" based on the amount they donated. This new feature would include the ability to add these "gifts" on the back end and set the price. ## Deliverables *** Please read. The WORK FLOW is the totally user flow, Only ONE PART needs to be developed **** Work Flow. A user come to the site to make a donation. They are presented with the screen that is ALREADY in place. When they hit the "NEXT" button. They confirm the donation details and hit "NEXT" The donation is made... **** NEW WORK **** They are taken to a page that has a message that gives the user a chance to select a gift BASED ON THE AMOUNT THEY DONATED.. If NO matches, then this step should be skipped. Example: The user donates $100. in the database the there are 5 "Gifts" Donation Amount $ 25 - 200 Item 1 35 - 200 Item 2 100 - 500 Item 3 200 - 1000 Item 4 500 - 1000 Item 5 The use should be able to select from item 1 2 and 3. They should also be given a chance to say "No Thank YOU" I want none of the items. Layout something like this.. <Radio Button> <Photo of Item> <Description> <Radio Button> <Photo of Item> <Description> <Radio Button> <Photo of Item> <Description> <Radio Button> No Thank you NEXT **** End New Work **** they are taken to the thank you page that is stock. ---- end front end work ---- Admin Work. Need a new option to add the "gifts" , the data should allow for me to have a NAME, Description of the item. Upload a PIC of the item, and select the range that it will be offered. They system should send an email out to an email address so the item selected can be ordered and sent.