If your control arm is not bent ( I do not know how to check) , you can easily replace the shocks as the broken bracket and bolt are part of the Shock assembly. See the photo.
Also, original shocks are date-coded and your photo seems to show a date of "66" - if your car is an early 250, these might be original shocks? Mine were original to the car and when I changed them (all 4) the driving was vastly improved.