add a hatch on a cuddy

have a small walkaround with a cuddy that only has small windows on the starboard and port side. does not let in a lot of light and not much air flow. anyone ever add a hatch to a cuddy? curious how feasible this would be.

I have, not to bad of a job tape off area to cut to keep fiberglass from splittering to bad. We used 5200 sealant to make seal around holes and hatch.