I should probably put this in the plumbing section, but thought I'd try here first. The vanity I'm replaceing is a 42".old styled site-built vanity. I'll have to go with a 36" with fillers on the side. I'd like to get a vanity with 2 drawers on the right side which is the side the wall is on,. There is no wall on the left side - just the toilet. My question is: I won't be able to center the vanity over plumbing outlet (whatever it's called) because I'm assuming the drawers will be in the way. Can the plumbing be moved a few inches to the left without incurring a big plumbing bill? Is this a simple thing or a major thing?