IMHO, you only need to replace the rotors if yours are bad. The SS brake lines however are a very good idea. Disabling the ABS is also probably a very good idea.
My personal experience is that driving with larger tires requires a wholistic re-learning of your driving style. You don't corner as sharp; you don't stop as fast; you don't start up as fast; you gas up more often; depending on tread design, you'll probably experience more 'wander'; depending on offset, you will probably NEVER drive in the rain with your windows open (even a little). Is it worth it ... you betcha!!! The feel of a VX sitting on big meat just can't be beat.