Well Tripper, I begin to see how you got your nickname.

To answer your question about being unconscious, it all depends on how long you stayed that way.  If you didn't come-to in a reasonable time, I'd set up a camp as close as possible, and most likely, after checking for broken bones/internal injuries haul the carcass to camp.  If you didn't regain consciousness, I'd use my indian cellphone (smoke signal - 3 distinct columns of smoke - I'd be really surprised if that didn't draw a response from park rangers within 2 or 3 days) to call for help,  and stay with you till you either came-to or went belly up.    Even with a 3rd person, I'd probably do the same.  A group of four is the standard recommended  # for a wilderness trip.  One stays with the injured person, and two go for help - you aren't supposed to send a person for help alone, since if that person got hurt on the way, you are worse off than you started.  A group of 3 or more could probably haul you out to a more accessible location by building  a litter to portage you with.   On the other hand, if you did come-to, and you were injured enough to need an evac, I'd probably still do the smoke signal, and only go for help after 3 days or so.  

As far as looking for a new partner, I think I'd try to shortcut the process by posting the trip I really wanted to take, and asking if anyone else wanted to come along.  Then go to the asking questions bit to see if it might work out.