Help & Advise wanted/needed - Caterham Academy!!

[Parf7]

I am seriously considering entering the academy in 2005. At present I know very little about it (I have contacted Caterham for info) and have no track/racing experience. Is the academy right for me?
Also are all the car identical? I know the engines are but are you allowed to change other components, suspension etc.
When I get the car will it be ready to race? will I need to add other items to it? Will I need to spend money upgrading the car?

As you can see I know next to nothing so any advice would be welcome

Thanks