Jet.com offers the GBX Men's Trammel Fold-Over Boots in Brown or Black for $39.99 with free shipping. (Street Moda via eBay has them for the same.) That's $65 off list and the lowest total price we could find. They're available in sizes 7 to 13, although not in all size/color combinations.
Note: You can also receive additional discounts during checkout by waiving free returns or by choosing select payment options.