I'm just here to leach all the good information I can about building a teardrop.

I'm thinking about initially building one without a trailer chassis, and just slide it into my pickup...storage works better for me, and there are a few other advantages to my way of thinking. I haven't actually measured it, but the lift gate extends farther than the normal tailgate, so I could support roughly 9 feet. Might even improve the mileage

At a later date, if and when my situation changes, I could build a trailer to put under it.
One of my prime motivators for moving out of a tent is the need for air conditioning in the summertime...I found out about tears while searching for minimal cubic feet to possibly cool with one of these:
http://www.arcticaircooler.com/. Anybody ever tried one in a tear that can tell me how well it works? Seems like a good match for sites with no external power or generator available. My pickup has an extra battery box, so I could dedicate one battery to the tear and still charge off the alternator while driving.
Obviously by sliding it into the pickup, I'm going to be dealing with modified entryways...I'm thinking about leaving a passageway in the middle of the galley, and just going in and out through the galley hatch. Kind of ala Kampmaster/Wild Goose, but not so elaborate. Just a place to crawl in, cool off, and go to sleep. I'd probably frame in and mark the locations for doors in the sides if and when it becomes a trailer, but just put in windows for now...maybe one big enough to use as an emergency exit, just to ease a touch of claustrophobia

Did some searching on the site, but couldn't find anything that really matched these particular features. Do you think they might work, or should somebody call the men in white coats?
Thanks,
David