We used oak because to us its the nicest wood, and the most expensive available here unfortunately. We love the grain in the wood and how it looks when stained.
Because lowes here had a sheet of maple stuck with the oak we got one interior oak wall and one maple wall. Lesson learned and we never take from a pile of plywood or any wood for that matter with out ensuring its the same as the others in the pile!!!!!!!!!!!!!!!

but its all good we left it and moved on at the time.
The last couple days we built a tongue box to hold the battery, circuit breakers, converter and we worked on finalizing the electricity. For the electricity we will have a power cord run through the side of the box and into the 30amp rv power panel. From the panels 30amp breaker we ran it to a subpanel with 2 15 amp breakers. One 15 amp for the GFCI in the galley and one 15 amp to the interior 110v outlet. The galley's 110v outlet also has an outlet in the box for the converter to be plugged into. So with this set up the galley outlet will not have all 15 amps available to it. I just have to figure out how many amps the 45 amp 9200 series PD converter uses itself. Its not on the box, the unit or the install directions so i will call them direct.
In the pics of the internals in the box are just sitting there and we are roughly hooking it up to ensure it all worked before the final install location for each piece of equipment. (pics to come)
Put some Emulsion on the bottom of the box for weatherproofing and we will be covering the outside with aluminum to match the trailers exterior when its finished.
yesterday after looking it over we have decided to add a small slope to the box to allow water to flow down and not pool on the box, so that will get done this weekend.
we also built the hatch frame out of 3/4" ply and skinned the outside. we are waiting on the hurricane hinge to arrive to finish the hatch and add the 2 led lights to it.
Here are a couple pics:




