I suspect that the reverse engineering the poster is trying to accomplish is to drop his competitor from 1 to 5. Question seems to be "if I don't have access to change the content or affect any of the changes you've suggested regarding uploading certain things, how do I drop the ranking of a top ranking SE result?"
If you want to hurt a competitor simply get 50+ links from adult websites pointing to them with some really adult terms in the linking text. They drop like a stone! ;)