Well, there are a couple reasons.  First, I'm pretty sure it's an
original and unique fic idea (at least, I haven't seen one like it
during my few months on the list--I'll go and hang my head in ultimate
embarrassment if there actually was one, and I missed it.)

The Garden of EVA is set in that reality:

http://home.earthlink.net/~jimlazar/anime/

Follow the adventures of Shinji and his "Mighty Oak" :)

Actually that world can open up just about anything you want.  Go for it!

Tom

----
Thomas C Kinnen - <tkinnen@creativeanime.com> <tkinnen@livingston.com>
[Test Engineer - Radius ABM] - LUCENT Technologies RABU
<URL:http://www.livingston.com/> * <URL:http://www.lucent.com/dns/>