Looks like a sensible modification, eM... you're not wasting any time!
I'd be careful about how much you add underneath there.. make sure you don't compromise the ability to sit there comfortably.
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"