suprafly - I don't want to offend you, but why not just learn to ride a bike with normal controls first, and then you can do whatever you want to after that. I don't think you should worry about being right/left handed...it has absolutely nothing to do with riding a bike. A bike requires the coordinated effort of five things: right hand, left hand, right foot, left foot, and the most important one...Your Brain! The last one will either save you, or kill you depending on how you use it.
Here's my list of ten reasons:
1. Major Safety concern.
2. Cost prohibitive.
3. Have to change the clutch lever and lines(longer)
4. Have to change the brake lever and lines.
5. Have to change/re-engineer the throttle cable mechanism.
***Will rotate backwards once it's moved***
6. No-0ne else will be able to ride it...including mechanics.
7. Resale will be difficult, if not impossible.
8. YOU will never be able to ride any other bike due to the reversal.
9. You will have to have both the clutch/brake resevoirs manufactured from scratch, since, if you move them, then they will actually have to be upside down for the levers to be in front of the handlebars.
10. It's just plain stupid. (Sorry to be so blunt)
That was actually easier than I thought it would be.