If clearance is a possible problem, you could stitch the ends of the two hoses together. You can get an idea of how close the fit is by pulling on either end of the old hose and see how easily it moves a bit.
It would be Difficult to stitch, what with the multiple fabric layers of a hose in that application. I did that once on a prior boat to install a new water hose to a forward water tank, and it ran quite a distance under an interior frp molding -- not too hard to sew with typical half inch water hose...
Interesting that the late model E-34 used an intake scheme just like our '88 Olson. Our original seacock was under the galley module. The hose went under the sole just aft of that, through an engine stringer molding, and to the raw water pump. It had a fairly sharp turn in it, too.
I wonder if the same guys in the Ericson shop thought that up!
I moved the intake aft under the aft berth and filled in the old hole with layers of cloth and epoxy after chamfering the edges. The run is now simpler, a little shorter, and there's room for a Groco strainer, too.
Let us know how it all works out. Keep the photos coming, too.
As part of that change on our boat I removed the sole pieces and refinished 'em. That made it all go a lot faster.
Aside: Some folks accomplish great feats in their lives... all I ever seem to do is futz around the inside of old boats!
Sigh....
Loren