DHL better get here soon! Mine should have been here last friday and I'm getting impatient. I got the tower mod, slick shift, coatings, and Torsen. Mine cost about $100 more, but that's because I bought a Torsen on Ebay and payed $600 for it because I couldn't wait. I also had him install a Ford OEM slave cylinder. I didn't want to worry if the Spec one was going to work.
I would get everything done if you are paying a flat fee for labor.