Replace Trim Hoses Mercruiser 120

[Triam]

Hi guys. I have a '69 Mercruiser 120, which has a K20 outdrive. I have the boat completely stripped down so I can replace the floor, among other things (see attached photo).
I figure that while it's in this state that I should replace the trim hoses since they're harder to get to when the boat's put together, plus they're over 40 years old. I want to know what the best way to replace them is. The only way I can see to get at them is to completely take the outdrive off of the transom. Otherwise, it's just hard to reach. does anyone know any easier way? Thanks.

 

[alldodge]

With going that far I would remove the motor and transom assembly. This way you can have a good look at the transom and install a new gasket seal. To remove the trim hoses, you remove the manifold at the bottom of the transom assembly on the outside of the boat