Look into a Squires Remote Mount Turbo Unit. They don't specifically make a kit for the Camry, but they are adding cars all the time. There is a universal kit available that requires you to create the intake portion of the kit, but otherwise is identical to any other kit they have for sale. This is very expensive, but will offer similar to Supercharger performance with minimal engine modification.
www.ststurbo.com
No I don't work for them...