When and if you decide to put down a deposit, be sure to ask them to go ahead and send you a copy of the assembly manual. You will get hours of entertainment and education leafing through it while waiting on your car.
I purposely left some options/components off my initial purchase that would not be necessary while doing my body work and paiinting. I did this both to manage my expenses but also figured I might have to turn that initial invoice over at registration time for a sales tax basis and saw no sense in loading it up with every last nut, bolt and option. Then I later ordered my remaining items as I needed them. There is some advantage to ordering as much as possible up front for shipping cost purposes. I would not have wanted to order that rear suspension assembly separately later and paid to ship it by freight.
