One of my best friends in the world is a lefty, and he learned right handed, and has been playing that way for....God.... I think 24 years or so?
You "lefties" are usually ambidextrious, meaning you can use both hands for writing/drawing/playing equally as well.
And one hero you can look to would be: Tony Iommi!
As for a lefty guitar, you can find them, just gotta look for them!
If you can find a shop in your area(call around, someone has_ to have them) that has both, even if it's a little travel, it may be worth it, just to find out if it feels more comfortable to play left handed vs. right handed.
Hope that helps!
And happy shopping!
Steve