Trading Iphone5 Unlocked GSM model for Iphone5 CDMA (Verizon) model

Hi,
I got this brand new factory unlocked Iphone5 in Europe that I just activated 2 weeks ago to use here on AT&T, but I am switching to Verizon to join a friend's data plan, and this Iphone model won't work on Verizon as it does not support CDMA.
I am looking for someone in the reverse situation who has an iphone5 or equivalent android device from Verizon and would be looking for the GSM version of the Iphone5 to use in another country (in Europe for example) or on AT&T.

This is an unlocked Iphone5 model A1429 GSM
It will work in Europe and several other countries with LTE support. See ref below
http://www.apple.com/iphone/LTE/
It also does work fine on AT&T as I mentioned above, but it does not support AT&T LTE (data only up to 3G).

I am also willing to simply sell this Iphone5 (price TBD) or trade it for another type of smartphone that works on Verizon.