120mm is not a problem for the Fei bao Hawk, plenty of space on the rails, it would need a little fettling of the bearer, but would leave plenty of meat left to mount the turbine.

The external quality of the Fei Bao hawk is excellent, and the build quality is quite good, just need to go through it to make sure everything is glued well, and change the elevator bearings.

The problem i've found is getting information and setup details for the model.

I'll let you know how they fly this w/end when I give mine the big maiden!!

Steve