Does the air compressor under the hood cycle on and off?
If the air lines were melted inside the car, or under the car going to each rear strut, yes, you will need to replace them, either from a parts yard car..or I do belive a dealer can get them in for you. Good way to test if the rear shocks air up is, with no wieght in your trunk, reach un and unplug the little two pronged connection on the sensor itself, then press the on button on your accessory panel in the trunk, the rear end should raise up, as this tricks the system into sending air to the rear shocks versus to the air connecton on the panel itself.
Damien-they don't make them like this anymore
97 SSEi. 3.2mps,msd,optima,1.9 YTs,245 RE750s,SLP Headers,custom ported SC inlet/outlet, 180 deg, INTENSE pcm,42.5#injectors,255lph pump,custom soilid motor mount, 3.0 mps(maybe), and the nut behind the wheel.