Question - is there an easy way to run a few erupters, one Jalapeno and some custom rigs (e.g., Burning Mining) off of one Raspberry Pi w/ MinePeon w/ cgminer AND be able to overclock the custom rig?

Could I just install another instance of CG Miner or can I do the overclock of a specific rig while not affecting all rigs?
Or would it be better/simpler to get another Raspberry Pi?

I am not script writing capable, so please consider that.

Very much appreciated and Minepeon doner, 
IAS