1996 GMC SIERRA 1500 Structure Problems

I'M GOING TO LIST EVERY SAFETY DEFECT WITH MY 1996 GMC SIERRA SINCE I PURCHASED IT USED IN 2008. WHEN I FIRST BOUGHT IT I HEARD A SWISHING SOUND IN THE HEATER CORE AND THE AIRBAG LIGHT WAS ILLUMINATED IN THE INSTRUMENT PANEL, BUT I THOUGHT IT WAS JUST LOW ON ANTI FREEZE AND THAT MY REPAIR FACILITY COULD FIX THE AIR BAG; BUT AS IT TURNS OUT THE CLOCK SPRING IN THE STEERING WHEEL WAS BAD AND I COULDN'T AFFORD TO GET THE AIR BAG FIXED. THE SWISHING SOUND WAS CAUSED BY AIR IN THE COOLING SYSTEM DUE TO A LEAKING INTAKE MANIFOLD GASKET; IT HAD TO BE REPLACED FOR 600.00 $. A BRAKE LINE RUSTED OUT (YES I KNOW IT'S AN OLD TRUCK), THE FUEL LINES ARE RUSTING AND WILL HAVE TO BE REPLACED SOON, AND THE OIL COOLER LINES ARE LEAKING BECAUSE GM VEHICLES HAVE FLUID LINES...