The tuner change is a good thing...extra stability, and the higher ratio will allow you to tune more accurately. Just note that you should get a string winder, if you are the type who like to leave a lot of string winded at the tuner.
As for changing the frets... well... you might want to hold on that for a while? Refretting isn't cheap and you might be interested in modifying different aspects like your tone. Besides, your difficulty in bending could stem from uneven/un-polished frets more than fret size.
You could add 4 push pull pots for coil split, out of phase, parallel wiring and throw in an EMG SPC. :twisted: