Smarter minds than mine will have to answer most of that for you. I do know that DownSouth emailed me today about the fronts:
"These shocks are indeed currently on nation wide back order and they are
due in at the end of March or 1st part of April per Bilstein."
So if you do get that set it may be a while before they get the front shocks back in and work through any backlog they have.
Thanks bro.... Anyone ?