Marc Jacobs red lace cardigan rhinestone buttons 6

Marc Jacobs red cardigan w rhinestone buttons & red lace on back (see photos). Marked size large but runs small & about a size 6. It is crew neck, 3/4 sleeve & in good but worn condition w a few flaws: the collar needs to be mended (see photo), the button holes are a little loose but fully functional. There is a small part near the buttons that needs a few stitches. Dress form in the photos is size 8 so would fit 6 much better. DIY fix! Approx measurements Armpit to armpit 17.5" Length 19" B40