This plan works
You have already quoted the relevant ready rules which state that you can use the readyReady action to move.
The rules for what you can do on your turn 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.
It is difficult to prove a negative, but there really is nothing else in the rules that prohibits this plan under normal circumstances. The readyReady action is simply one of the many action options you can take during your turn. The action you choose to take does not influence whether you can move, and neither does moving affect what actions you can take (any exceptions to this would have to be noted in the rules for those specific actions, but nothing in the readyReady action description suggests such a limitation).
Note that the disadvantage of this over Dashing is that this does require you to spend your reaction.