Not so fast. Frankford and Saterlee were both square bridge Gleaves class, and are as different from Caldwell as a square bridge Fletcher differs from a round bridge one. More so, because the Caldwell funnels don't match either. The last 20 Gleaves units did the same curve elimination that was done on the Fletchers, also lowering the MK-37 director at the same time. I don't know of any plastic kit that has that bridge.