Looking good...
With the Rocket you have to adjust (grind off) some of the overtravel tab to make it work (didn't know if you knew that so I figured I say something). Keep the stock recoil spring and guide rod, Glocks don't need a steel guide rod, they are designed to run the polymer ones.
THANKS FOR THE ADVISE SINAC84, I HAVE WANTED TO DO A GROUND UP BUILD GLOCK FOR A WHILE AND MY GLOCK FUN FUND JUST GOT BIG ENOUGH TO DO IT SO WISH ME LUCK!!!