Adding in deck storage???

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Anyone ever add in deck storage on a 4 stringer 20 Seacraft? I removed a lot of foam when I re did the boat a few years back and I'm trying to see if it's practical to add some sort of hatch to access the now empty area. I'd have to make a front and rear bulkhead. Anyone ever done it? Below is a picture during the deck replacement. The starboard side is where my rigging tube is now but the port side is open fore to aft. Thoughts?