Hello, and welcome to JA!!
Is my attempt to save money safe or way our of line lol
14-2 wire is fine for lighting and general use receptacles. Just remember it goes on a 15 amp breaker
if any receptacles will be for appliances or for a bath outlet, it should be 12-2
not a problem there. The max wattage we will be using in the near future is 800w AT 120V
We are using a composting / waterless toilet so there is no water in the bathroom
you will be fine with 14-2 then. It is good for 1800 watts
Good Deal thanks