No one has finished one yet. Pep models are not made by magic, they are made by very hard working modelers, so give them some time and they won't disappoint.
Sharkhead, over at the 405th, is currently working on a really accurate Mark VI. The chest should be released in the next few days, with more pieces coming as he finishes them.
However, I must say, if this is your first pep project, get your feet wet now while you wait for the files to be released. Download one of the many great Iron Man helmet models and figure out what's what with pep. If you're new to pep, chances are you'll need to practice and scrap some models before you're ready to make a whole suit, so they might as well use them as a learning experience while you wait for the Mark VI files to be released.
-Nick