Here's an interesting "teardrop" for sale in TN by a member of T&TTT. Manufactured. $3500. But it's 4'-wide. I wouldn't want less than a 5-wide.
http://www.mikenchell.com/forums/viewtopic.php?t=3474807' Wazat camper. Small and light enough to be towed by most any car. Its all aluminum and weighs in at 640lbs. The camper body lifts off of the trailer bed and becomes a light weight 4'x8' flatbed tilt utility trailer for your lawn mower, atv, or motorcycle.
The camper size is 4'x10' and is perfect for 2 adults to stay high and dry while camping and/or road tripping to avoid high hotel costs. No setup is required, just pull out your chairs and your done.
The camper is powered, either by an extension cord plugged into 110V at campgrounds, or the 12V deep cycle trolling motor battery installed in the back. There are two ceiling lights, two "porch" lights, and a stereo making the large battery last weeks under normal camping conditions.
The stereo is a 60 watt CD Player stereo that sports face off security features and an aux plugin for playing your ipod, and a usb charging plug for phone or mp3 players.
There are 2 doors so you don't have to disturb your partner getting in and out, both with screens so you can let the air flow through on warm nights. There is an electric fan in the roll up roof vent to keep the air moving. The back hatch opens to a flat deck for kitchen counter, or plain ole storage. The bed is 4' wide x 6'9"long so even the tallest of you can fit inside comfortably. (I'm 6' and could stretch out no prob)
The trailer is outfitted with all LED lighting so your sure to be seen while traveling after dark.
I do have a clear title and it has been registered. It does not require registration while being towed in TN but I registered it for towing it out of state. (trailer license is like $13 bucks in TN who wants to be hassled over $13?)
It takes a 1 & 7/8" ball.