ren71,
Congrats, nice purchase. My 2cents, SOAK the rear u-bolts, shackles, leafs with liquid wrench several times for a few days before you start. Also, get a wire brush then scrub off the threads on the u-bolts, it will make things so much easier. Personally I'd do the rear first, it's a quicker job, you'll get a sense of satisfaction, and you won't have to worry about the front sitting higher either.
Where in West LA do you live? Ring me if you get stuck or have questions about the install. I've done the front disc from WH and springs on all 4 corners too.
Good luck and remember, SOAK it first.
Chris