When I dropped the mast on our 9.2A to rewire and paint, I debated putting in an ST40 wind instrument to go along with the ST40 speed and depth already installed. I decided against the installation, mainly because of cost, reliability, as well as lack of integration with my Simrad autopilot (already installed). I guess there are times it would be nice to have, but I really don't see the need as long as a good wind vane is installed.
Regarding the refrigerator, that was an interesting debate. The original icebox would need to be re-insulated to start. I considered the Waeco 50 series (good amp draw, not really big enough for Florida's summer heat) and the 80 series (good for the heat, but the amp draw was just too much without rethinking the battery bank). Dry food storage was also an issue. Even though I installed cabinets above each settee, we were still low on places to store food (we're planning being aboard for 2 months this summer). When considering all of this, I went ahead and purchased a Waeco stand-alone 52 quart coolmatic refrigerator. We custom made the quarter berth cushions to allow the coolmatic to store right behind the port settee or I can mount it below the fold down dining table. Both areas give up a bit of space, but it frees up the galley icebox for dry food storage -- and lots of it. Another trade-off, I guess, but I like the set up as the coolmatic is big enough for our cold items (and can freeze, as well), but is an energy champ (it pulls only 3.75 amps and runs about 15% of the time in summer and less than 10% in winter). One last selling point for us, it automatically switches to 110V when shore power is turned on.
Well, sorry about the long post!