Good to see the RIB afloat
Some interesting features there - I've just spent a couple of minutes tracing your fuel lines, then realised you must have two tanks with one separator/filter per tank. Nice setup.
There's a strange assortment of nuts on the transom though - a mixture of nylocs and dome headed nuts. Sorry to be picky but I'm a stickler for this sort of detail! Anyway, the dome headed ones appear to be on the jack plate bolts - is this correct?
Your drain well looks unusual as it lacks the vertical sides that most RIBs have on this feature, but certainly doesn't need a cover. However, what volume is open down there? If it's a couple of inches either side of the aperture, then no problem. But if there's a large void that can fill up, the bilge pump(s?) could get busy as your elephant trunk isn't at the lowest point.
No doubt you will enjoy the RIB over the coming summer - remind us what's the overall length - just short of 9m if I remember correctly?
God bless that RIB and all who sail in her