Looks like that guy planned on doing an RS6 conversion probably on Avant. But he has most of the parts needed to do it. Here is a pic
https://uploads.tapatalk-cdn.com/20170208/a165da9607b8cbc3280b9dcdbb666d9a.jpg
if any body wants more information he has posted in a sales group I an in on Facebook I could contact him and relay any information.