The UCD 46 hovers, pulls out, and does 3d very well when powered by a Saito 72 using 30% nitro fuel and APC 14x4W prop.

You indicated that you've read the UCD forums so you obviously know that all the engines you mentioned have been used in the UCD 46. Why do you believe that the answers you get in this new thread you've started will be any different from the answers in the other HUGE ucd threads?

Since all those other engines are bigger than the Saito 72 you can probably guess that they will overpower the model to varying degrees. Take your pick.