Original: BillS
This project is experimental and likely headed towards a prop engine.
Might be a good candidate for doing away with the tail feathers completely and fly it with elevons. I don't recall anyone trying this but yours seems well suited due to the excess tail weight. It's basically a delta wing and it should work considering how pitch sensitive the airframe is to spoilerons and flaperons. In it's present state it sounds like you're gonna need more power than a glow engine can produce as prop size is limited.