WordPress theme needs customization

Hi I have this auction theme which works well but i need to add some customization. I need an automatic bidder to bid on the items with different random names which can get the names from a file maybe. i want that automatic bidder to work only when it is not the highest bidder and only and only if the number of the bids by people minus the number of the bids generated by automatic bidder multiply by 5 for example or (a number that i determine from my admin menu for each item) is smaller than retail price on that item. so basically to make it more clear, automatic bidder needs to check two conditions: 1. is autobidder the highest bidder? 2. is (number of the bids - autobidder number of the bids)*(5) < Retail price. and if these two conditions are true then it bids on the item. I also need to be able to turn the auto bidder On and Off from the edit auction page for each auction separately. - also need the theme to replace the auctions automatically with another item randomly from the same category once the time is up. and if a customer is the winner it shows me in admin menu but if my autobidder is the winner it shouldn't show anything to me. can you please give me an estimated quote and let me know if you need me to clear up stuff here Thanks