Man, that is too bad. Those seats and padding look like they are in perfect shape! Im currently doing the front buckets in my 70 project and the foam and burlap is just gone from dry rot. I have put a ton of work and cash into the front seats over the last 6 weeks. As far as the dash frame goes, you can pull the steering column and heater box and get to all the insulation easily. pulling the frame takes on a whole new project.