DA-100, 3W100B2 or BME102???
Just this last weekend I saw a ZDZ-80 single in an AW 33% 540-T ARF. Performance was outstanding. The plane needed elevator and rudder servos all up front on pull-pull and all the batteries near the cowl to balance. Still, it came out a little tail heavy according to the owner. But, for 3D flying it's fine. He was able to get the weight of the plane down around 25 lbs. Most are in the range of 29 lbs with a 3W-80 or 3W-100. The performance was great despite the extraordinarily hot weather on Sunday (about 100 F with high humidity). I have also seen about 8 other ZDZ-80 motors in action. Haven't seen a poor performer or an unhappy owner yet. There are a lot of great motors to choose from for this size bird.
If you chose another light motor, like a BME, you'll likely have to move the servos forward too.