It is impossible to estimate the cost of an accident by simply reading....even with pictures it is nearly impossible.
Body shops are able to bend back "frames" but the cost can be quite expensive to say the very least. Depending how bad the damage is, it most likely will be totaled if there is frame damage and your vehicle has high mileage.
This is simply a theory, but if you were rear ended and your exhaust has been hit, it could be hitting/rubbing on something if it got shoved forward/up.
No point in trying to get estimates now - the body shop will take it apart and let you know.
Body shops are able to bend back "frames" but the cost can be quite expensive to say the very least. Depending how bad the damage is, it most likely will be totaled if there is frame damage and your vehicle has high mileage.
This is simply a theory, but if you were rear ended and your exhaust has been hit, it could be hitting/rubbing on something if it got shoved forward/up.
No point in trying to get estimates now - the body shop will take it apart and let you know.