I would definitely isolate and never call in that spot. maybe u can raise a little bit more to somethin about 1500 because BB has good odds to call and position. I like the cbet/fold at the flop.
I don't mind the iso raise, but it is too small IMO.You gave him nearly 3 to 1 odds, he only has to face 1 person betting and he has position on you. I think 2200 is a better play here.