Based on the now generally accepted Rich Hill chart, 42 and 78 get them to #30, which seems plausible and accomplishes the goal of getting back in. If they give up both seconds, it would get them to 20, which seems higher than they'd need/want to go unless something bizarre happens with a guy falling. Tonight, though, that does seem possible I suppose.
I'd only support moving back up that far if they choose to initially pass on JSN for example and he falls there. Otherwise, I'd rather have the two picks in the 2nd considering this draft class.