Need help picking the right prototype

[Mengmoshu]

I've been stalled trying to find the right prototype for a building entity I'm trying to mod in. I want it to consume electricity and have 4 orientations, it shouldn't have a GUI or any kind of storage. I poked around and tried a few things from the base game (assembler, lab, mining drill) but each of those had features I'd like to avoid. I expect to have to use scripting for the ultimate functionality of my mod, so I'm not afraid to use scripting to manage this part too.

More specifically the building will be moving resource entities from behind my building to in front of it. I'd like to be able to give it 3 animation states (Active, Idle, Done).