It really costs 10 to 15 grand to redo an e9 interior depending on how complete you want to go with all the materials and what the labor costs if you are not doing it yourself . The front covers and the rear covers are 2000 each in leather from world so that would be 4g right there .,vinyl is half that. plus new padding which in horse hair is 150 per seat . Carpet is 800 and door panels are 400 each. The wood is 11oo from Bella butbifvyou do it from Madeira concepts it's 3G . Then the labor to recover and stuff the seats and install the carpet and new lading and to take out and reinstall the wood which may require full dash removal and front windshield removal and replacement is going to be costly in labor . I think VSR charged 2000 to take out and reinstall new wood for someone on here I'm sure I forgot things like under carrier padding and redoing dash if there are cracks , etc . If you can get all the interior parts from that. Copart car for under 10g that look almost new you would be saving a lot of money especially after reselling all the stuff you don't need like bumpers . Etc