I looked at your Porsche build and like a lot of the options. Basalt Black is a metallic color vs. non metallic for regular Black.
Just curious why you added the Porsche Doppelkupplung (PDK) $4,080. Did you try the new 7 speed manual? That might be a place you could save some off the build and add some more fun to the drive. With the sport chrono it will rev match your downshifts
If you're parallel parking a lot you might want to consider the power folding side mirrors that add a light and will fold the mirrors when you're parked.
I ordered a 2014 Carrera 4S and was able to save off MSRP, but I don't know about with the Targa. Try contacting multiple dealerships. I talked to some that would barely negotiate off an order, but found others you could negotiate with