“Spot the ball” Intergration

I currently require a web based application that allows me to enter a "spot the ball" competition on my website. This needs to be a grid where by the customer needs to identify where they believe a soccer ball has been removed from a picture in order to win the competition. The grid needs to be incredibly fine as I need to sell around 1,000 tickets per competition. i.e. the grid would need to a large number of coordinates available for people to choose from. There must be a grid within a grid system for example when the customer makes the first guess this will create a zoomed in version of a more detailed grid. Also parameters would need to be coded to help identify the closest ticket entry. To gain a better understanding of what I am trying to explain, please visit [login to view URL] and click on "buy tickets" to take you to the competition. Here you'll see the same type of page that I am trying to add to my site. When customers choose the grid, they also need the option of making multiple selections (guesses) and each time they make a guess it will need to be linked to a payment shopping cart. So that when they are finished making their selection, and proceed to payment, I need to be able to relate the coordinates to each seperate transaction. Prior to clicking on the grid the customer much choose which competition they wish to enter. It may be the case that this project also needs a members area for this to be possible. At present I intend on accepting PayPal, Visa & crypto currency as methods of payments. Ideally I'd like to see examples of similar projects before awarding the project