Hi there im restoring my 1929 Essex and there's a thick pad of insulation on the inside of the firewall that is still in good shape but just has 91 years of dirt in it and needs replaced. I would like to find something really similar to keep it original and I have tried every antique auto upholstery dealer i could find on the internet with no luck. Do you have any suggestions? I would really appreciate any help I could get. Thank you.