I almost make 5'2" if I try very hard to stand up real straight, and ride a 44cm Ruby. As much as I would like to use a light weight beautiful cage like those, I know I will need to yank the seat-tube bottle sideways, so I use these:
They are Elite Ciussi tubular SS cages. Not as light or pretty as the CF cages I wish I could use, but they 'give' a bit so I can get the bottle out. They look kinda retro on a CF bike, but I just don't have the room to pull the bottle straight up. They do work great; I've never lost a bottle, even on my MTB (use it for an energy drink.)
Camelbacks are fine for MTB, where you need to carry more water than you would on a road bike (no 711 on the mountain side), but the weight, carried high on the back or hips, just does not feel right on a road ride IMO. I used to do that, but went back to the bottle, and much prefer it.