A best bet is the Jos A. Bank Men's Tropical Blend 2 Button Suit with Pleated Trousers in Light Tan Plaid (pictured) and Light Brown Plaid for $127 with free shipping. That's $568 off and the lowest total price we could find. It's available in sizes 36 to 46, in lengths short to long.
Tropical Blend 2 Button Suit with Pleated Trousers JoS. A. Bank Men's Suit is also available at these stores