In the USA - and all the other countries that drive on the right side of the center line, the left side of a m/c tire will typically wear faster than the right due to the camber put in the roadway for drainage. The opposite would be true in counties like the UK and others where they drive on the other side of the center line.
Now, if your forks are bent, yes, you can swap a B12 front end on. You'll want the parts you mentioned plus the brake calipers and rotors. If you're going to this much trouble, you may want to consider upgrading to an even higher tech front end by checking out the FAQ section.