Hi John,
I guess the remote will have 4 joystick modules. First for the 4 geared dc motors used for movement. Second for the two servos used for pan and tilt option, and third and forth for 2 steppers (described in the previous post as Function nr 3). And on and off button, and maybe some light buttons, but this are optional.

I am a bit limited by the size of the robot, which should have a base not larger than 10-12cm (4-5 inches), and no more than 25 cm in height, that is why I used a arduino nano, but anything else might work. The thing will have a wooden/plastic case on top to cover all components, and I cannot continue with the design until I figure out what and how large will be this arduino thing.

I intend to learn arduino, but I can't figure out where to start yet, and I would preffer to narrow somewhat the learning to my specific need. It seems to me right now, that in its entirety, this is a topic which requires years to master.

Thanks for the reply.