I read an antique newspaper opinion piece that was laminated to the tabletop of a restaurant a while back, which I believe may hold the answer to this problem.
The writer was aghast (or a-gassed) at the growing trend of people placing toilet facilities INSIDE their homes. The author chided his excessively-plumbed readers for their thoughtless toilet placement decision, which needlessly assaulted their families' and guests' olfactory senses, while the tried and true Out House was such an obviously superior means of privately addressing one's malodorous bodily functions.
So there you have it..... $50 worth of lumber at Home Depot, a few nails, and a shovel, and you have a solution!
No need to thank me. Just the knowledge that I have helped solve your problem is thanks enough.