I got it out! But I'm still interested in a puller if anyone has experience with the cheaper ones I listed above.
In the meantime, here is a picture of my homemade puller that I used to get the stuck injector out. I used a 13mm crowsfoot, a short length of all thread, a short piece of 1/4" steel and a few nuts. I had to put a couple bends in the rerod in order to clear the top of the injector:
First step: use a air gun to remove all dirt that you can away from the injector. Remove fuel line, return line and wire harness.
Second: fill hole with PB Blaster (or your favorite panther piss)
Third: use a 13mm crowsfoot, extension and breaker bar to gently rotate the injector back and forth
Fourth: install the homemade puller and start tightening the nut
Fifth: if it gets stuck, add more blaster and rotate with the crowsfoot/breaker bar
Sixth: install puller again and finish removing the injector
Seventh: if copper washer is still in the bore, use an o-ring pick to fish it out.
Clean, clean, clean!!! before installing new washer and o-ring.