I am interested in the Hanger 9 Otter but only if I can use a pair of Saito 56's that I recently acquired...the distance from the firewall to the propeller backplate should be at least 4 5/8 inches...would someone who currently has the plane please tell me if there's sufficient space to install these engines within the engine cowls? I understand that the cowls may be too narrow to hide much of the engines...

Thank you in advance for your help.