My wife and I have been looking at teardrops for a few months now and are trying to nail down some design details. This will be an off-road TD build, and a few special requirements is that it will fit a roof top tent for the kids to sleep in, and the cabin will have some extra space for our 90# siberian husky to join us at night. We took a 17 day cross country trip from PA to CO, WY, UT and SD a few weeks ago and that has paved the way for us spending the majority of next summer on the road. So a super quick setup and tear down time is very important to us as we'd like to stay as mobile as possible.
That said, I've put together a very rough drawing in sketchup and would love to get some feedback from you folks who actually own and use and have experience with these! The tow vehicle is a 99 Land Cruiser that is outfitted with a drawer system, ARB fridge, inverter and 5 gal water jerry can. And a 6-person Coleman ground tent. Works great for longer stays, but with the kids and 4 peoples gear, pads, sleeping bags, etc. setup and tear down time is pretty lengthy. Plus it's a gigantic juggling act to get everything packed in the truck and the Yakima roof box. Every square inch of the truck was packed!

The big design change is the roofline and rear hatch:

We did this for two reasons - one it gives extra space in both the cabin and galley, making full use of a 5x10 cabin. This allows for an extra area at the foot of the wife's side of the bed for the dog to sleep!

The second is that is provides some cover and weather protection fro the galley. We also want to be able to use a Foxwing awning, this will provide 270 degree coverage over one side of the TD and the galley, all in one slick setup. For those who might not be familiar, here's a video: [youtube]https://www.youtube.com/watch?v=C45a-xHzJG4[/youtube]
Here's one more picture of the proposed galley setup. We really like our 22" 2-burner partner steel stove and ARB63 qt fridge and would like to retain those and move them back to the TD.

So hopefully that shows the current basic idea. A few questions:
1. is the rear hatch possible to do/build as shown? It's a pretty tight curve. This is probably the biggest question as this will effect any design changes..
2. any thoughts on galley layout? Do we need the drop down side table and sink? We can get a 19 gal water tank built into the frame. The wife would like to have more water available, most of our camping is/will be primitive. We can add 2 more jerry cans pretty easily to the front of the trailer, but the built in tank, pump, sprayer and optional side sink sound like they'd be a good idea.
3. any thoughts on venting? a fantastic fan will only be able to open 3-4" before hitting the tent. Side vents? A few of these placed towards the front? http://www.etrailer.com/Enclosed-Trailer-Parts/Ventline/VP-543SP.html
4. what else aren't we thinking of? Sounds like lots of folks would like some sort of "basement" storage for dirty shoes or other stuff. This plan would have storage under the bed, not terribly easy to access though.
Thanks in advance for any help! Looking forward to joining the fold.
Ben/Fireball