1999 Ford Ranger wheels problems

While driving in town on hwy 20, the front right wheel assembly separated from the axle. The vehicle pulled to the right causing me to collide with a boulder in the side of the hill. Hitting the boulder deployed both airbags, put the truck up on it's two left tires and sent the vehicle back into the highway. When the truck came to a stop I got out of the truck to find the right front tire/rim/brake assembly resting against the curb approximately 15 feet behind the vehicle.

While driving on the highway, I was having difficulty steering. The car was pulling to the left and I had to pull over because it was too difficult to manage. Upon inspection, the right front tire was toed-in and the upper tire stabilizer arm broke away from the frame at the bracket. The bracket attaching the arm to the frame had snapped. The frame itself just below that bracket was cracked with severe rot on both sides. The rest of the truck is in perfect condition except for the frame.