This plan works
You have already quoted the relevant ready rules which state that you can use the ready action to move.
The rules for what you can do on your turn are simply:
On your turn, you can move a distance up to your speed and take one action.
So, you can choose to move up to your speed. Then, for your action, simply take the Ready action, choosing to move in response to some perceivable circumstance.
Note that the disadvantage of this over Dashing is that this does require you to spend your reaction.