In theory, a receiver is a receiver is a receiver. As long as it has enough channels to cover the functions you want to perform, and it's compatible with the transmitter, you'll be fine.

The differences come down to quality and reliability. I haven't heard of the Pico 6 channel receiver from Century Heli, so I can't comment on it. Frankly, if it worked good in the helicopter, it'll work just as well in a 3D parkflyer foamie.