Most customers have reported that these boots fit true to their usual shoe size. We do offer a fit guarantee to make sure you that you get the best fitting boot, http://www.campsaver.com/service/warranty-returns/
Thank you for your inquiry. I have ordered more sizes for the Alaska GTX, since they ship from Europe it usually takes 2-3 weeks for us to get our shipment. If you would like to reserve the size 13 please contact our customer service at 877-883-6276 M-F 9:00am-5:00pm Mountain Standard Time and they can set up the special order for you.
Tomorrow is the last day of the Hanwag sale, if you set up a special order to reserve the size you need before then I've instructed our customer service to honor the sale price of 20% off for you. Please mention to them that Scott authorized the discount and they will take care of that for you.
Please feel free to contact us with any other questions. I apologize for any inconvenience not having your size in stock may have caused you.