FFFFAST, we also moved up from a 330 and share your frustration with storage space. FYI, we ended up putting fenders in the transom storage locker (holds 4) to keep the deck clean.
Identical Sundancer, we have a fire extinguisher mounted in this location. Per 'wingless' comment, we have not used it either, thankfully, but I'm reassured it is in easy reach for myself or guests. Also, should you be randomly boarded by Coast Guar...
We haul a 350# dinghy on our 44 (diesel) and it is noticeable. The weight is centered and forward as much as possible. The GHS shows a capacity of 800# but the dinghy alone pulls the exhaust ports almost even with water level.