rodent odor problem in my 69 cuda

I have a car that was a home to many families of rodents and a few cats. I found nests every where. My floor pan was very bad and had to replace it and I found nests in the frame cross members, under the rocker panels, rear frame rails. You name a space and it had nests. You may want to use a shop vac on the areas that are tube like and use a wire or coat hanger to stir up the nests so they come out easier. I think the only way you can get rid of the smell is by sealing it in or cutting it out after removing all of the nests. I used por 15 in the frame areas and any place I could spread or spray it around. Using a something with an odor is just masking something that is still there and will be after the masking agent has dissipated.