Personally, I'd just sell it for what I could get for it and get another vehicle. Not worth the work, trouble, sweat, $$$$ and aggravation to try and fix an old busted up vehicle that needs to be dependable for my wife to drive. Especially doing it in cold weather. Now fixing it up to be an off-road beater is another story.
But that's just my opinion and worth what ya paid for it..... And I'm a Cheap Old Bastard that'll do anything to keep my junk running before buying something else, up to a point. When it gets to the point of body surgery and swapping major parts and shit, I'll toss in the towel and tap out. Fuckabunchathat.