solar on/off grid installation

I appreciate all the feedback that i have received on this post. When i first decided that i wanted to do a solar system for my camper, i assumed that the mppt charge controller load output was ac. I did not realize that you needed an inverter. from the cheap full systems i have seen, the inverter is left out. I guess these are strictly for off grid installations only. I definitely want some decent equipment. I only asked about hooking the load from the charge controller to an ac breaker due to the fact that i assumed the load was ac. Since the load is dc, i think connecting it to the dc side (fuse box) would be more beneficial now. there is no reason to convert 12v to ac and then back to dc. most of the equipment i have is ac/dc. the air conditioner unit and the microwave are the only thing that runs strictly off ac power. i do have a converter in the camper that converts dc to ac. It is just a standard camper converter system. I have been thinking of replacing the whole unit with something better (if anyone has suggestions for better quality replacement unit let me know). So now that i have been enlightened. Sould i hook to the load off the mppt charge controller to the dc inputs on the fuse box or should i forget that setup completely and just connect the new battery bank that is connected to the mppt charge controller dc output in a series with the original battery that is on the camper? Just connecting the new batteries from the charge controller to the old battery would actually simplify things and may be the best option for me. I now feel like i have been making this installation more complicated than it really needs to be :)