$200 for a header install? I'd be on top of that. I'd rather drop a couple bucks than save it only to make trouble and work for myself. Especially since I don't have a lift - installing on jack stands would be a pain, to say the least.
I'm told it's an 8-hour job... labor out here near Philthadelphia like $80/hr if not more. $80x8=$640. You'd be saving $440 worth of frustration to get someone else to do it and do it right.