HK USP Full Size 9mm WTT for same in .40 cal

I have a size USP 9mm with original box and 2x15 round mags in excellent condition that I would like to trade for a HK full size USP .40 cal in like condition. I bought it gently used and have only put 100 rounds through it. I will send pictures to anyone who has a full size USP .40 if you E-mail me. Thanks