Really?
OP asked for general advice, but gave a sketchy (in whole) and lengthy, somewhat detailed description.
Advice given so far:
1) go to a bike shop
2) ride the existing bike
What I'd contribute (although I'm not convinced that this isn't internet trolling on its face):
[MENTION=448287]Mad Jack[/MENTION]: What would be your budget for this envisioned bike, pray tell?