Like Yakima says... If the cab is good (doors close, pedals don't rub, steering column in center of hole) and sitting properly on an unbent frame, it all starts with the hood to cowl gap. Get that even and go from there.
If you did major surgery without checking the fit of related parts you can get in trouble very quickly, especially when one mistake feeds another. That type of "accumulative error" is the cause of many abandoned projects.
But anything can be fixed so don't despair.
