Regard the hub nut, there's a coupla different styles. The older one as I recall is two-part, like the front, with a locking ring. Dorman sells these as #615-130 and 618-049 respectively. (Dorman is the name behind those "Help!" carded things, so most auto parts places will have 'em.)
The newer ones, my preference, has a square key to lock it and then a spring to hold it all in place. Dorman sells these too, 615-132 (ring), 615-140 (square lock), and 615-141 (snap ring.)
Can't speak to the brake lines. I'd imagine whatever fits -- you're just going from the hard line to the calipers, yeah?
-- A