So I have the under floor storage box done.

- 20140405 box progress small.jpg (106.1 KiB) Viewed 2589 times

- 20140405 finished box small.jpg (122.97 KiB) Viewed 2589 times
Now I have to decide if I want to install the box on the floor when it is upside down, or finish the floor, flip it upright and attach the box from below.
The first would let me seal everything very well, but would be a big pain for flipping it upright due to the increased weight and the problems that would occur if I'm wrong on the tongue extension not interfering. The second course of action would mean less access to get a caulk gun in and seal everything properly.
I also caulked all of the floor joints. Well, I started it, my wife decided to come out to see what was going on and decided she could use the gun better than me so I just wiped everything and told her where to go next.

- 20140405 caulked floor small.jpg (95.43 KiB) Viewed 2589 times
Next up: Picking a path forward for the storage box, then two coats of primer, two coats of paint and then one coat of fence paint.
Next weekend I'm out of town, but the week after that my dad's offered to come to help with the trailer for a few days so I'm going to take some leave and see how far we can get. With any luck, we'll get the walls and stick frame installed so I can run the wiring and such.