Any god who started his rule book with the words "Always wash your hands before you eat, and boil water before you drink it" would get my respectful attention. That's a rule I would accept.
If this god added some other clear and concise common sense guidelines for living, that were based on scientific principles anyone could learn, even better. He would not even have to do miracles. With science, we can heal our own damn amputees.
Add in prohibitions against slavery, child abuse and sexual assault and he would pretty much have me. The god would have to be physically present and apparent to everyone, of course. I am not that hard a case.
That's the kind of god I could believe in.