Just an update on the trailer. I picked up a Mobicool A40 absorbtion cooler for use on the trailer. It fits perfectly beside the stove on the slide. I plan to build some sort of box around both of these units. I think. I need a heat shield between the two at the least, for obvious reasons. But I figure might as well build a box around the cooler to increase it's insulation. It would have to be open on the back to allow the heat to escape the absorbtion heat exchanger.
I also managed to get the RV water pump working so that I don't have to use the pump that came with the Coleman heater, nor do I have to lug around the 5 gallon water jug. I used the internal 19Gal tank. I've had a bit of trouble finding a relay to switch the pump on using the 6V supply from the heater. I'm using a small PCB relay rated at 3Amps, but that is just temporary. I just found a 6V 30A automotive relay from Tyco and will purchase one plus a spare.
We used the trailer on the weekend and it's coming along nicely. My son REALLY wants to be able to sleep in his space. It was hard to disuade him. So any fears that he won't want to are disappearing. Hopefully his room can be finished soon enough. Need to get a smoke detector and an LED night light in there at the least. Probably a wireless door chime as well. It's got a dead bolt on the inside that he already knows how to use. He wanted to read a book in there, so we let him, and I just thought "I better warn him not to touch the deadbolt, I didn't bring the keys" Turn around, and he's already locked it. Uh oh. But, he unlocked it with no problem.
My wife was impressed, because we returned from the beach at noon, and managed to cook lunch and eat it, feed a baby, and keep the 4 year old happy, wash the dishes, and break camp in 1:45. Pretty good, and it'll just get better as the trailer gets more complete.