Sorry, I'm on vaca right now, not back till the new year

There seems to be quite a few variants on the hand unit for doing taps/showers with, I guess they're all about the same

For floors there seems to be more of a range, possibly because you might be doing a small apartment or you might be doing much larger place.

If you're uncertain you could try going the Craigslist route, then if it doesn't work out you can resell and it won't cost you anything other than time and a few bucks gas money