I have have nit seen anything bigger than a micro sized. On a off chance did you check walkera. I know they had a bigger one at one time. It was about the same class as a blade cx2.
The Chinook in that video, although cool, is not scale. The rear rotor should be level with the ground and the front should tilt forward. I still want oen, but two gear boxes and the fuse, just those 3 pieces, are $1117!!!
There is a custom builder in Australia that is developing one that they call their 475 size they are Perigrine Helicopters Not sure how far they are off production or what the price is but may your dad can drop them an email.