I have the same gripes about oil dip stick access, the horizontal oil filter and the aft facing raw water pump. Those are minor annoyances to me.
The four loony bin ”What where they thinking?” issues for me are:
1) The skeg mounted rudder. No complaint about performance or the concept, but to drop the rudder for any kind of maintenance or repair you have to remove the skeg from the hull.
2) The mild steel compression post in the bilge. Not the infamous Hunter I-Beam that many on this site have dealt with. My ‘82 H30 has a 2x2 steel tube post and base plate which luckily is in OK shape but requires vigilant protection against corrosion. Always being a cold climate fresh water boat on the hard six months a year is probably the only reason it has survived so long.
3) The original bilge pump through hull discharge was directly behind the ac/dc electrical panel. Yikes! I decided to relocate it. When I tried to pull the hose off, the white plastic fitting was so brittle from UV exposure that it sheered right off in my hand. The discharge is now through a galley locker.
4) The water heater below the cockpit sole was dropped into the hull before the they put the deck on. Had to cut out part of the bottom of the starboard lazarette to replace it.
That said, quirks aside, I love my boat. It’s the perfect size for me, sails beautifully, has a classic look, and through many projects over the years, I’ve gotten to know every inch of it.