Trail Fire Grill for all base camp cooking needs.
Shower system: bucket, rechargeable battery powered shower pump, pop up changing station. Simply add boiling water to bucket and add other water to get to desired temperature.
Food: vacuum seal and refrigerate/freeze real food to prepare for dinners each night. Boil/simmer in the bags for easy/no clean up or grill/wok pre prepped meals over the Trail Fire for same.
Toilet:
@mtnwrunner has a system using a bucket, bags and a toilet seat that’s simple, clean and you don’t fill the area(s) with cat holes for others to deal with. Yes, you have to pack your scat out and deal with it.