AC Unit

The compressor only weighs about 67 lbs, not much more than one of two GC2 batteries, so tongue weight will go down. Maybe a little metal plate to protect the refrigerant lines? Wouldn't take much, its only a foot or so that is exposed before the lines turn up into the front of the trailer. 

All good points. I will have to move the condenser forward from where the current battery frame is. It  won't be usable anyway. I have only the single mounted propane tank which will need to be moved forward a little as well. The rear clearance for the condenser at its closest will be significantly less than specified but with the curved front of the rpod I think it should be OK. A removable cover will for sure be needed, we will need to get one made up out of some heavy vinyl or equivalent material.  The most expensive item might be a new wdh, the A frame clamps for mine look like they will interfere with the condenser mounting points. From looking at the few ppl who have done this on rv's I think I should try to use rubber mounts and flexible refrigerant lines at the condenser. 

The evaporator mounting location above the valance at the head of the bed is tight but looks like it should work. I'll need to attach an aluminum plate to the wall box tubing and then mount the evaporator to that. It weighs 18 lbs. Add the refrigerant lines and g forces and I'll need the wall mount to be able to handle 50-60 lbs to be safe, so a bunch of self tapping screws into the wall tubing. The refrigerant lines will be exposed where they curve down to the corner of the mattress but it looks like there are flexible covers available for that. Once the a/c is in the "bedroom" I want to make a curtain up to close it off from the rest of the trailer at night to save even more energy. 

A condensate line and control/power to the evaporator runs along with the refrigerant lines. I've installed mini splits before (in my house) and found the hard way that they need to be pretty near level for the condensate pans not to leak, so no running the a/c until set up and leveled out at camp. 

The nice quiet evaporator should fit above the head of the bed and the condenser on the a frame where the batteries are. Should be an easy refrigerant line run along the front wall in the corner and down through the floor in front of the water heater. Replace the batteries with a Li inside the trailer. SEER is 21 plus which is probably close to twice the efficiency of the roof mounted jet turbine we have now. I think my biggest risk is that the minisplit won't handle the movement from travel and might develop refrigerant leaks.