Sorry for your difficulty.
The chances are it is beyond your skill level. Learning how to fix it over the internet or this forum will not work. We can not assess this. Even with pics. So start looking for another cab. Do you have 1000 hours on the cab or the whole.........whatever it is......29 tons truck thing? Doors, glass, mechanisms and a lot of stuff is still OK. At least get your money back from the blaster to use on a new donor cab. Have you said anything to him? Don't let this bum you out. Find a cab. Your cab still needed lots of work anyway. You will have the warp truck for patch panels. You will be back to where you were in no time. You don't need to be screwing around trying to un-warp it.

It's harder to warp a cab than a car. Way less large flat areas. Lots of "stiffening contour". I guess 40 years is not enough yet.

Many times the person himself has 40 years but he gives it to a worker who does not.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn