i had the cab off my truck and turned upside down doing a ton of welding this summer. Well without thinking and going forward 100 miles an hour i left my headliner in the truck. burnt a ton of small holes and a few other marks in the top fabric. I have now taken it out now and want to replace the fabric. I think i want to do this myself, has anybody done it? how hard is it? where did you get the fabric? can you give me any step by step ways to do this. I should also say that this is still all intact , i havent done anything other than take it out of the truck. Do i pull all the foam off and start from the cardboard?