looking to buy some viper products

Nice car! One of the few real cars left on the planet. Anyway, 530T: Does four windows up, or four windows down, or two windows up down.   If your want full up/down control of all four windows in your sedan, you need to buy TWO 530T. Bitwriter: Allows you to save a few seconds by plugging into the back of the Viper brain, and you can program all the features (remote start runtime, etc), using the Bitwriter's hand-held display. It's a timesaver for professional installers doing a half dozen cars per day. For your single car, you can just program all these features using the Viper's install guide and the remote control that comes with it. 556U: Allows you to temporarily bypass your Ford's anti-theft system during remote start. NOTE: One of your spare Crown Vic keys gets placed in this module, and stays there forever. You lose the use of one of your keys. PKALL: I think this is the one for your Ford, but you should check to make sure. Allows you to install the remote start without losing any of your existing keys. NOTE: Requires two existing good Ford keys to program. XK01, XK06, DLPKCHG2: For other kinds of cars, mostly GM. OTHER NOTES: 1. Labor for alarms is much more than the product. Now matter how good of a deal you're getting on these products, if you're planning on having someone else install them, keep in mind that each of those extra modules you're getting adds significant labor cost. 2. You do have two keys for this car right?