I'm having trouble understanding you.
Let me paraphrase, and maybe we can figure out what you want.
You are right handed, but for some reason you want to shoot it lefty?
I'm only asking, because if this is the case, you're right handed, why are you shooting lefty? If it's because you're normally a righty, but shoot lefty, and the brass is bothering you, a lefty rifle might be the best option. You might be able to have someone (preferably a gunsmith, of course) make some adjustments to the gun, and have the angle the brass comes out change to work better for you.