Layout question

[Sal]

So I think I need the toe room, so cut out the liner I guess. As far as I can tell, I've got two options, core the sides or add vertical supports to strengthen the hull. I'm leaning toward the vertical supports, but have questions about placement. A lot of posts on here talk about 3 per side.

So, my question, if I closed in the bow above the fishbox as 1 support, ran another support at the edge of the casting deck and then left in the aft seating/bilge access/livewell, would this be enough support. The stretch between casting deck and the stern is the biggest concern. Is that stretch too far. I could add a horizontal support somewhere under the gunnel.

I think this placement might limit toe busting and still accomplish what I'm thinking about on the layout. But I want to hear from those more experienced than me. So, what do you think.