I have some experience with flood cars, having helped save quite a few under insured antique cars after Hurricane Sandy......



First thing you need to do is flush the fluids from the drivetrain, it's important to get the water out of the motor, trans, rear diff and gas tank/filter/lines, brake and clutch systems, cooling etc ASAP.



Spray all areas with WD40, add oil and new filter, hand crank a few times

do not attempt to ad fuel, or attach a fresh battery at this time



Pull entire interior out of the car and flush with high pressure fresh water, if your have a pressure washer, with a hose for soap, get yourself a gallon jug of Lysol or similar disinfectant. Make sure you get into to the door cavities, behind the seat cavities, dash cavities, etc and so forth. The more you can flush out, the better off you will be in the long run.



Trunk, engine compartment, and bare interior all need to be hosed out (no pressure washer) with fresh water, as the water the car was submerged in was contaminated with raw sewage.



There is no saving the electricals, pull the complete harnesses out of the car and toss them now, same goes for the starter, electric fuel pump, etc. Fresh water or salt water does not matter, if the car spent more than a few minutes submerged, water has found it's way into the harness and it is just a matter of days, weeks, months before it corrodes from the inside out.



Yours is an ambitious project, but not impossible to make happen.



Expect to have to flush the car with fresh water at least three times with disinfectant mixed in at least in a low flush. Beware of getting cuts, beware of getting any near your eyes, mouth, or nose. The toxic fluids can kill you if you do not take this seriously.



Any specific questions, just let me know.



Sincerely,



Bill S.



