If you can find a replacement handle, be prepared to have a spare set of hands available to help with the reassembly. You have to take the oven door apart to remove/install the handle attaching screws. Installing the lift springs and tensioning them while setting the door in position will try your patience. They must have a special jig (which I don't have) to help them with the initial assembly at the factory. I suggest you install some flat washers to help add some strength/rigidity to the handle/door stiffness so the handle/sheet metal wont bend in the future when it gets leaned on. (which it will)
Chum lee