Creating an urban orchard - need some help with fruit tree information

Hello,

my name is Julien, and I am currently working on a public art project that involves planting fruit trees in cars and parking them around Vancouver (www.stickshiftproject.com). I am doing this as a call to action and a symbol of change for Vancouverites, and I would like to gain momentum towards creating an urban orchard on 16th avenue boulevard.
I am looking to create a communications plan that details what such a project would look like: how many trees could be planted, how much fruit they would yield, what care they would require, how many tons of CO2 would be saved through the local production of apples, cherries etc. rather than having them shipped from halfway around the world... All of these details that people would require in order to make a decision to get involved. I am wondering if you could direct me as to the best way to gain this information, is it a book? a person?

Thank you,
Julien