Add To Cart Bot for Art Prints - open to bidding -- 2

Hi, I am looking to create a bot that will automatically add art prints into concurrent shopping carts and to pay via paypal. It is critical this bot is extremely fast. 1-5 seconds MAX to complete all purchases. Also it must work on my MacBook Pro. Furthermore it must be easy to handle as I am not not really good when it comes to IT stuff. Basically these store release different posters at a set time . Im looking to... on my Macbook Pro 1. add art prints to concurrent carts (6+ max), have to be handled separately as there are rules that only 1 posters can be purchased at a time I would be already happy if it worked for 1 cart. But it should be possible to install on several computers, reap. Macs 2. go to check out, click on paypal link 3. select 1 of 6 ship to addresses on the paypal checkout page 4. confirm order back on e-commerce sites I am looking forward to hearing back from you on this. I am willing to pay USD 100 for this. Thanks