After months searching for it, I finally found a Doc Martens Joy Division boot on Ebay for a very good price. I'm as happy as a Joy Division fan can be :'D :
Dr Martens 1460 Unknown 8 Eye Boot x Joy Division - HotelShops
Dr.MARTENS-UNKNOWN PLEASURES - VISITFOR
Dr. Martens - 1460 UNKNOWN PLEASURES. Shop the Dr. Martens X Joy Division + New Order collection now. Shared by dvd_ian. EU: http://bit.ly/2lbOLFT US & INTL: http://bit.ly/2Mso4sR | Facebook
DR. MARTENS X JOY DIVISION + NEW ORDER - Dr. Martens Blog