Here are some before and after pictures of the work. Mid County Mustang did a wonderful job on my mustang. I am more then happy with the quality of work.

Basic Repair List:
Both Rear Torque Boxes
Both Inner Rocker Panels
Complete Floor Pans
Both Rear Frame Rails
Patches on the front Frame Rails
Firewall repair

I'll let the pictures do the talking...

BEFORE AFTER
Passanger Side inner rocker looking forward
Passanger Side seat pan
Driver Side Inner Rocker looking forward

Passanger side rear torque box area
Driver Side Torque Box
Passanger side floor
REVIEW (1-10, 10 being the best)
PRICE:
9
For the amount of rust, I'm sure you can find slightly cheaper, but for the quality of work, You'd be hard pressed to match the price. Mid County Mustang was on the low end of all estimates.
QUALITY OF WORK:
9.9
The only reason I don't give it a 10 is for some of the clean up issues. There was a lot of metal dust in the car, and the fact that the heater wire was incorrectly hooked up. VERY VERY minor stuff. The actual repair work was some of the best I've ever seen.

OVERALL
HAPPINESS
FACTOR

10

Mid County Mustang was a shere pleasure to work with. Great price, great work. Their quote was almost dead on. They found $200 worth of repairs that needed to be done that they didn't see at first (actually, couldn't see at all until they got in there). For a $5k estimate, being $200 off is pretty good. They even called for permission to conduct the additional work, and told me it wasn't 100% neccesary, just recommended. I recommend anyone who needs frame repair that is within a few hours of Philadelphia, PA to them. I have more frame repairs to do later, and my car will be making the trek from Boston to Philly just so they can work on it.