I think you're trying to find something that doesn't exist. Pattern doesn't have a criteria for 3D, and the airplanes are purpose built to fly precisely. There's a reason why there isn't something that size that's readily available, because they don't tend to fly all that well. My 2m pattern planes will hover, do rolling harriers, and other basic 3D maneuvers fine, but that's not what they're designed to do. I don't think you'll be happy with an airframe like you're looking for, should you happen to find one.

Sorry I can't be of some more help. Maybe if you're willing to change your criteria a little, you'd find more options, and likely be happier with what you get. There was an interest in artistic aerobatics back about 8 years ago that was basically precision 3D, but it never really caught on due to the lack of versatility with the airframes.

Good luck, and I hope you can find something, and perhaps give pattern a try!