@3series takumi
The motor mount works, you should try it. The only problems is, finding a spur gear that will fit.
I have got the receiver from my LHS. In my country it is available in 35 and 40 Mhz. Attention - it is a FM receiver.
Here is homepage of the manufacturer. Raising and lifting - that's cool. I will use an additional servo for my 4x4x4 project.
diets - got 2 new mini-x today