Okay, but what is value for money? Do you desparately want to stay Camry? Would it be more cost efficient to build a Celica? Or a Corolla? The problem is your going into mainly uncharted territory, where most items would require custom fabrication (Redwarf Motorsport, PM me for my mobile number! :insane:), and custom stuff comes at a price and doesn't always work.
Ask Fook.
You need to set a budget, and research your rectum off, and there wont be a lot of info out there. YOU need to do the hard yards, check and double check what people tell you. People will bullshit you to get the work, and if you don't have firm pricing, they will screw you.
It's not all gloom, if you do the hard yards, supervise the job properly, look after the budget, it's one of the most rewarding things you can do....
P.S: Punctuation is your friend......