unless he has fab skills, he will have to pay a shop. Out where he is, that could be big money, possibly less than the $800, but not every one has the time and desire to let a shop fab shit up...that part I can understand.
Dude, can you cancel the order? Seriously, it's cheaper going to a local GM dealer. Normal price was under $600, I got a slight hookup and it was right at $500, for the entire thing. I pulled the old one, installed the new one, every single thing was new! It came from James Wood.