Personally, I prefer a clean deck, but do keep a bow line attached as part of the standing rigging. Expanding on that concept, you might look at 550 cord -- small , inexpensive and very strong; comes in different colors. You can use the bow pad-eye to anchor both sides forward. You can string through the cargo bay bungee pad-eyes and tie off at the aft cargo pad-eye or aft handle.
You would only need two additional pad-eyes amidships to keep the line outboard of the cockpit area. With your line well anchored fore and aft, your choice of amid-ship fasteners wouldn't be critical.
You could increase the utility of the amid-ship pad-eyes by also using them as tether points for gear (actually, any point on your deck line would serve).
