It isn't a stand up manual, it is a sit down wheelie. Jack your seat way up high and sit on it. Once you figure out the balance point one hand isn't much different than two. Some bikes are easier than others. Try a fat bike or fixie

 I can wheelie just fine but I find my hands are always pulling back so much that to take one hand off makes everything wonky.... And then I fall

 Maybe I just need to work on the balance point more, getting the front truly weightless?