Your dealer would have a set of painted colour panels of all the colours available and the leather swatces and thread colours. Suggest you go and see them. If this is the first time you're ordering a "new" Ferrari, then I suggest you put your deposit first because the specs can be finalised later. It takes quite sometime before the factory will need a final confirmation of the specs so you'll have plenty of time to make changes after you've made your orders. The que for the 430 is going to be very long so place your order now and finalise your specs in a couple of months time.