I’d throw the springs on and see how close the alignment shop could get the specs. The cc plates and tie rods wouldn’t be hard to throw on after the spring install. I put the PP shocks/struts on. I would at least put some dampers on of some sort if you’re running the non-pp dampers. Ford Track...
No CC plates or toe links on my setup. The alignment was pretty close to being able to get within spec. Not enough to warrant the extra cost at this point. With the 1” drop you’re going for, CC plates and toe links may be in order. Mine was .75” in the front, .50” in the back.
I had the resonator delete h-pipe on my 15 mufflers for a while but it still needed some “oomf”. I found some 2012 GT500 mufflers and welded them in place of the stock pieces. It sounds perfect now.