Yes you just have to change your L.O. to 11250 on the 2nd DBS LNB, There is alway something on DBS FTA worth watching. The signal is bouncing in off the side of the dish, but it works great as the DBS satellites have very strong signals. I just added all the DBS satellites to my receiver, its well worth it. Any old DirecTV or old type Dishnetwork LNB will work.
You can just zip tie the DBS LNB to the Ku LNB, or there is a Dual LNB bracket you can buy, I made may own : )