I looked at a 1990 38' Barracuda yesterday. The shower stall was extremely small and awkward. Seems like taking a stand up shower would be next to impossible. I'm thinking that converting the entire bath floor into a shower pan might be worth looking into.
we had the same poor setup on a 32 ft. chris craft. ej is right you have to be full of it to get comfortable while you shower .....lol. the (new to us boat) we have now has a 4 ft. tub and shower. its soooo sweet.
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1991 gibson 44 executive 454's norwich,ohio docked on the good ole ohio river in marietta