It is repairable using epoxy, just make sure to remove all loose material and clean and etch/sand scratch all edges and mating surfaces very well. It is a time consuming process shaping and cutting new lines (hack saw blade) in and sanding, but it is worth it in the end. I use masking tape in a good area and marked lines and then moved the tape to a repaired area. This now serves as the template, I drag a loose hack saw blade across the mark on the tape to cut the lines in the smooth repaired areas. If you take your time you can cut the lines straight and evenly spaced to look original. For paint you can go to a paint supply house and have them mix up an interior paint to match. They will need the vehicle info and interior trim code and I also like to show them a sample of another interior piece that you want to match. A lot of paint supplies can even put it into an aerosol spray can for you. Make sure to use an adhesion promoter like Bulldog, to make sure the color sticks well. I like to clear them with an epoxy clear, these are also sold in aerosol, Eastwood sells it. You just pop the activator and shake the can well and once it is mixed, spray. The paint will harden in the aerosol can once it is activated within 24 hours. I have had luck getting a couple days out it before it hardens by putting it in the fridge. I attached a couple pics of my steering wheel I repaired and painted for my car. I upgraded to a rim-blow that I also needed to restore since then.
