I cant imagine you used some sort of jib for the crane shot.
Its a Kressler crane. Solid build . My advice is to purchase another heavy duty tripod.
did you have any problems interchanging the footages during post between the cameras in terms of picture 'tone'?..did the HMC152 hold up well?
Gramma curve is different for the dslr as compare to camcorder but dslr hold on much better in low light condition. ( Prime lens will be good for this purpose )
For dance and fast motion camera work, i will strongly recommend the hmc 152. ( 720 50p is better for this purpose )
Color grading are done in fcp and magic bullet look.