My goodness, it sounds like you've had a difficult experience so far. I'm really surprised by the first surgeon's insistence that your leg would be fine with such rotation. I hope the surgery to correct it goes well.
I have no personal experience with this sort of thing but I suspect your recovery from this surgery should go more smoothly in the sense that you won't have the problems caused by the rotation -- hopefully that will speed things up for you.
I know everyone's situation is different, but for what it's worth, one of my friends broke her femur last March and was actually back to riding her bike outside within a few months. She was still using a cane to walk, and she couldn't swing her leg over the top tube to get on and off the bike unless there was something nearby (a car or fence, for example) to lean on for support. When nothing was available she would lay the bike on the ground, step over it and then pick it up, or do the reverse to get off the bike.
She was very determined to get back to cycling as soon as possible after her surgery. She is retired so she was able to really focus on her rehab without having to worry about things like work or caring for young children. She went for walks twice a day starting the day she got home from the rehab facility. At first she used a walker and only went to the corner and back, but she gradually increased her distance and graduated from the walker to using two quad canes, then one quad cane, then a regular cane. She bought a nice (decorated) cane that could be folded when not in use, and was able to fit that in a bike bag. Someone lent her a stationary bike for her house and she started out riding it 4 minutes twice a day, and gradually increased that, and as she got better she was able to switch to her regular bike on an indoor trainer. When she was able to ride outside again, she started on a flat rail trail and gradually added hills and worked up to longer distances. Of course all of this was with the approval and assistance of her physical therapist.
I hope your recovery goes well also and that you're back on the bike soon.