Hiya Blake, I see you found us...I'll pass on a couple of thoughts...vents are basically a standard 14x14 and a Fantastic brand fan ventilator (or equivalent) is preferred for air volume, noise and power draw...I prefer an "A" or "Y" framed tounge since they have a bit more redundancy and resistance to sway than a straight tube does...
...mini fridges are neat looking and we have used them but will (probably)never use them again because they are not very efficient (12vdc model) and are all space hogs...space that is highly valuable commodity inna tear and would be better served with a good 5day cooler...they do make some 12vdc/120vac/propane units but they are rather pricey...
...there are many Harbor Freight and TSC trailers out there that have 12/13" wheels and do fine...I prefer 14/15" wheels because they ride better, are safer(matter of degrees), are generally longer lived and just plain look better...
...unless you are doing some serious off-roading I would recommend sticking with a torsion style axle(Flexiride or Dexter) over springs alone...they will generally give a better ride for your trailer...
...a last thought, is to have 2 doors, Td's are cozy to say the least and each of you having your own door is invaluable for those late night trips...besides it gives you someplace to go if a bear comes a'knocking in the middle of the night
...other amenities such as awnings, privacy tents, stoves ect. can be added much cheaper as aftermarket item as you see a need for them...
I hope you find exactly what you are looking for since teardropping is just so much fun that everyone needs to give it a try...let us know what you decide and hopefully post a picture or two(we luv da pics)....good luck
madjack
p.s. the first time the wife and I slept inna tear(4'er) we awoke at 3Am nose to nose and both said the same thing..."5'wide"...4' is OK but takes a little choreography to sleep just right...elbows are dangerous weapons

...I have come to believe that, conflict resolution, through violence, is never acceptable.....................mj