black water disposal

Just go invest in the proper septic system. Whatever it costs it will up the value of the property another 20% above what it costs. Locate the future home first so you don't put setic and drainfield in a good location for the cabin/ house and gets good gravity flow to the tank and gravity flow to the drain field. Drain field needs to located down hill from tank but level ground works also because of the depth dug to the distribution boxes. Any slopes over 35% usually won't allow drain fields. But ea. county has their own stipulations.

Also don't leave a nice camper there unless you have neighbors to watch over it as it will get lived in by squatters or broke into. Counties usually won't let you live in an rv permanently unless you have a permit to build a cabin/ home.