I lube my cvd's cups with tamiya molyebdenum grease, dirt will get attracted to it just keep an eye on it. If it gets too bad it will accelorate wear and tear on your parts.

I lube my bearings with hudy bearing oil, one way bearing with hudy one way oil, thrust bearing with much more thrust grease all with good results.

I personally wouldn't worry about the suspension arms. Just make sure it's all bind free. For the ball cups again i wouldn't worry about lubing them, but if they are too tight just give them a little squeeze with long nose pliers when installed and that should free them up a bit.

Hope this helps