Cloud Deletion on AWS - open to bidding

The current cloud project can be split into three steps. Step 1: implementation on the VM ( with data, such as a text file or jpeg image preferably). Using the shell script rm, we remove the image or text file we put on the vm. Install a data recovery tool ( Recovery or DiskScrub) and recover the file that was removed. And is that possible, if so how ( need to do a demonstration over here) Step 2: Demonstrate with a secure deletion tool -> how this so called tool can be installed -> delete the data and show it can't be recovered. The deleted data has no trace on VM's Step 3: Extra ( if possible) would be to delete the across 4 VM's and bench marking it : as in, how much time it took to delete 1Mb, 1Kb and 1GB