I've been lurking here for some time and I've already learned a ton from this awesome community! You've helped me make some great design and materials decisions!
I plan to build a BIG tiny camper/motorcycle hauler on a nice, heavy-duty trailer I already own. It's 6' wide and 12' long with 15" sides. It was custom built in Florida with an all-tubing frame (no angle iron). I intend to tow it with my 4wd Nissan Xterra on rough roads/off road, so I had a shop flip the axle to the bottom of the leaf springs for more ground clearance.
I don't have any good shots of the trailer by itself, but here it is loaded up with crap in the garage.

I want standing room on the inside, so this is not going to be a teardrop. I'm hoping for 6' 1" to 6' 3" finished inside height, a large bed for two people, a counter for food prep, and lots of storage for motorcycle riding gear. I have drawn some designs and will post them in the Member Designs section soon. I plan to begin construction this spring, after my new garage is finished on the inside.
I hope to learn a lot more of what I need to know to complete this project from all the experts on this forum!