I have a 1979 “6.6 Litre” I’ve self assumed to be the olds engine, with an edelbrock intake and carb, aftermarket headers, paired to a 4 speed auto, hopefully the pictures will help explain. Floor pans are rusted through, windows leak has some accessory wiring issues, you get the picture. What is the current value? Is it worth repairing and to what extent? All help is appreciated. Thanks all.