For all those who use Zaino, how much of each of these products will I actually need? How many bottles each of ZFx, Z2, and Z6 should I get to last me 1-2 yrs? By the way, its there any cheaper place to buy this product besides the online store? Thanks.....

Even other distributors won't sell it below the website cost.

1 order of ZFX should last 1-2 yrs (only gets uses at max 2x's a year)

Z6 (spray - you will go through bottles, the stuff is great!) I would reco 3 bottles to start with when you get down to one you can order more.
Z7 soap - washing 1x a week probably do 2 bottles a year maybe 3
Z2 - depends on how often you wax it - the more the better the shine u'll get. 1 Bottle should last you a long time
Z5 - 1 bottle more then enough unless your car is in bad shape. Keep in mind this is a swirl/scratch filler, not a remover
Leather cleaner n conditioner - bottle of each should last a long time (year or so)

I checked the Zaino website and found this quote for ZFX......

"ZFX™ Flash Cure Accelerator Additive should be used with Zaino Show Car Polish (Z-2 or Z-5, Z-3 for non clear coated) twice a year on an everyday car and once a year on a show car. Also, please reapply ZFX™ Flash Cure Accelerator Additive after every ten coats of Zaino Show Car Polish (Z-2 or Z-5, Z-3 for non clear coated). ZFX™ Flash Cure Accelerator Additive will never remove Zaino. Also the NEW ZFX™ Flash Cure Accelerator Additive is an incredible product and could be used as often as you like. it's up to you. It will tighten up and strengthen the polish system and increase the gloss"

What Zaino is saying is the ZFX should be used AT LEAST twice a year......I use ZFX every time.....it drys faster and like the Zaino people say, it tightens and strengthens the system