He does look a lot like your manx. Ours is definitely not people friendly but he gets along with our two cats so we feed him. Our cats adopted a possum a few years ago too but we had to get rid of it because we have horses. It looks like they adopted him too. The last feral cat that we adopted was really friendly but he was more the size of our cats. He disappeared one night so I am hoping he found a new home and nothing bad happened to him. I usually go to feed horses at sun up and one morning I heard a really funny growling type noise in the tree line next to where we park. I think it was Bob but not sure. But whatever it was didn't stick around as the cry/growl/noise started fading off as it made its way down the tree line. If we set up the infrared, he comes in just after it gets dark eats, takes a nap in one of the cat beds, gets up eats again, and so on. He leaves around 5-ish.














