The shower diverters in this house need to be replaced, and apparently that is going to fall to me. I've looked around, and it doesn't appear to be too difficult of a process. I see there are a few different types, and mine (at least the one up here, I haven't examined the one downstairs) is the type with the set screw on the bottom, at the end up against the tile. Since I'm on a budget, I'll just get something cheap to replace it, but I was looking around and saw mention of measurements, so I wondered if there's something I'm missing. Do I need to be concerned with spout length or some other measurements?