2007 Tundra has No Reverse or Neutral

I recently Backed into a Concrete wall really Hard. I have Reinforced after market bumpers so there was no damage to the Body of the Truck. I was able to drive forward but when I put it in Reverse the Truck drove forward. I tried Neutral and the same thing happened. My Code reader says I have P0756 Shift Solenoid B, and P2714 Pressure Control Solenoid D.

The Mechanic I took the truck to says that the transmission needs to be replaced and quoted me $4500 for a used trans with no warranty.

 

Might be able to just replace the valve body, which has most if not all the solenoids in it for alot less. I would guess around 1500$ for that labor/materials someplace.