OK, I'll reply to the stove question.
LPG -
Pros;
- Instant and very good heat aswell as an oven if you want one
- Stoves last for a long time
- No need for marine bottles, just exchange @ a servo
Cons;
- Expensive to purchase and install
- Gas lines have to be installed by a professional and it can be hard to find one who wants to do work on a yacht
- Bottle takes up alot of room
Metho-
Pros;
- No bottle, no installation
Cons;
- Filling the cannister is no fun in a seaway, although Dometic/Origo have a system where you take the cannister out of the stove to fill outside.
- Parts need replacing more often like the wick/burning material
- Can be slower to heat up than gas
Personally I would always go gas but have used the Dometic/Origo one and they boil a kettle nearly as quick as gas and can be gimballed. Here they are
www.dometic.com/en-us/us