Just my opinion, I would give it a complete cleaning inside and out. Then if you are able, park it in your garage and start it occasionally to keep the battery charged and just let it sit covered up. Believe me I know what you are going through, I have a 68 dart and it has been sitting in my driveway covered for 2 years. My health is very bad, I need a liver transplant. I have all the parts needed to finish the car but can barely get out there to work on it, but I will try the best I can to get it done. It may take me years to get done if I live that long but I am a diehard Mopar guy and won't give up on it. Neither should you, have strength and keep the car. Tell your father that he can not leave yet because he still has work to do with you and you don't want to do it alone and you need his guidance. My best to your father and you, keep your faith and everything will work out if you keep believing it. Scampman