dscaccia
Too heavy to fly? You can make almost
anything fly with enough power afterall modern jet fighters have wing loadings greater than a cast iron man hole cover, but at the moment it certainly looks like you are going the wrong way down the weight/power spiral - too heavy needs more power so yet more weight etc and it gets expensive too!
The question really is will flight be achievable at a speed that you are able to safely handle rather than whether it will fly.
The
electric K and A 50" P38 has a ready to fly weight of 42 oz so you are over that already with just the bare airframe!
If you have experience in flying heavy planes then it might be ok but I guess you wouldn't be asking the question if you were!
I would put it to one side and build something of a more modest weight. You never know you may be able to complete it satisfactorily when you have more experience in electric flight.