My wife's in the bedoom taking a nap before her overnight shift tonight, and here I am in the living room planning my next TD behind her back. You see, I LOVE my wife, and I want to spare her any unnecessary aggravation.
She'll be aggravated enough when I come home with the first few sheets of ply.
So, this will be my one and only thread for this next build of mine, called "The Clam."
1) This is the profile I want:

Forget the fenders for now, but Angib--I NEED YOU! I need the specs to approximate this profile! (I will be PM'ing you shortly.)
2) I am building this on a 40 X 48 HF trailer, which I widened to 48 X 48. (I lengthened the axle.) I am ASSUMING that this is a 6' total long model built on a 4' long trailer.
3) I left the axle in its original position, and will be towing with a Suzuki Sidekick. With no galley and low tongue weight (so far; see below), should I be concerned with moving the axle back?
4) The above model has access through the hatch. No thanks--I want one door, and one window. No hatch. Hatches and me don't get along. (Doors and I aren't exactly best friends either, but aside from a Star Trek Transporter to get in there, I have no other choice.)
5) I will be running NO wiring in the walls, and want to do each sidewall with two sheets of 1/4" ply sandwiched around 1/4" rigid foam insulation, giving me a 3/4" laminate wall.
6) Because I extended the axle, my floor extends 4" over each side rail, which means I have to mount the side walls on top of the floor, as opposed to the side of the trailer. If memory serves me correctly, this is a totally kosher and safe way to build, correct? I could theoretically lay a sheet of insulation on top of the existing floor, and then ANOTHER piece of ply, but that might be overkill.
7) For the roof, I don't have a freaking clue--but I would like wood to be involved. (I'm skinning the sides with colored aluminum.) Because this is such a "small and simple" project (HAH!), I'm tempted to do something with STRIPS of wood. Open to any and all suggestions on this.

Looking at that front profile, or give me OTHER ideas, how can I install a window shaker in this? I want this short and low like in the photo, but I don't like to sweat. In theory, my 6,000 btu unit could theoretically turn this into a MEAT LOCKER, and that's okay too. But I want it.
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Ladies and gentleman, please discuss--and thank you for your ideas!
Also, what is the Neptune Society charging for funerals these days, since my wife will surely kill me when she hears the word "Teardrop" leave my lips yet once again?