Bow height on 455 Hornet

Does anyone have a 55 lb Minn kota bow mount on a Hornet 455 Trophy? If so what shaft length is needed. IE 48" or 54"

[Ravin]

I have a Hornet Wildfisher 445 with a Motorguide Energy 54 pound bowmount & the shaft length is 42" . I know both the boat & motor are different but it may giive you an idea anyway.