1. you don't need to change your bars if you don't want to. "If it ain't broken, don't fix it."
2. You can take your fork off like this:
loose the clamp on the steer tube, get the steertube off the fork, and you really don't need to get it off just for reinforcing the tubing.
3. "How to reinforce a fork" by Travis House.
loose the clamp,
take off the steertube,
take off the big headset nut,
take off the top headset cup
... and you should be able to get the fork off now.