Sell everything but the Camaro. Reason being is at this time you won't get nearly what its worth...f-bodies, espically Z28s have fallen drastically in price. And on trade-in you'd be lucky to get 12 grand.
Just get any 4 banger with a nice warrenty, just don't nitpick between one getting 33 MPG and another getting 36 MPG. Its all in how lead footed you are