Do you know what year it is? To my knowledge, current CAAD 10s come in 52cm and then 54cm. Also, they are aluminum bikes with carbon forks, not full carbon frames. Anyways, I am actually very close to your dimensions, at least in terms of height and inseam. I'm about a quarter inch taller with a slightly shorter inseam. For me, the 52cm would probably have been the right choice. But Even in that size, I was in a fairly aggressive stance, with practically no bend in my elbows.
I'm not saying the fit was right or wrong, just trying to give you a rough idea of what to expect since we are of similar proportions. I guess it would be worth a try, but maybe a smidge big.