I like the design
<img src="http://www.teardrops.us/userfiles/21/revised%20kitchen-1.jpg">
I would question if you are right handed or left (or at least the chef) for the stove location.
Storing the propane under the stove isn't the best spot, but if the cabinet is well vented in case of a leak, and the area doesn't open into the sleeping quarters, you should be fine.
As for Jacks thoughts on stoves and hatches...I've seen some that are WAY too close, but yours looks well thought out, and certainly far enough away from the hatch.
Might need a heat shield at each end though...
The safety front is a great idea!
I'd recommend good drawer slides rated at 70 pounds or more.
The weight of the stove and food aren't much, but somone is gonna lean on it...
I like the top storage areas too, very easy to access, very easy to see what you have, and no worry about things falling out.
Premade countertops are okay, but as they are made from particle board, it is wise to apply sealer (paint/varnish) to prevent the moisture that will eventually get where it shouldn't from causing damage.
If you can, make the sink bigger.
I've tried small, medium, and large, and the large is just plain easier to use.
Pans, pots, dishes, hands, hair, all the things you want to rinse or fill, are very difficult to do in a tiny little sink, they look cute, but cute doesn't equal practical.
Keeping as much open counter space as you can is important, but you'll use the sink way more than the counter...
Rob
Waiting for "someday" will leave you on your deathbed wondering why you didn't just rearrange your priorities and enjoy the time you had, instead of waiting for a "better" time to come along...