> Still not sure of the answer to my question. Is there room to install 2x superchargers in the tank area ...
I think terminology is getting in our way. A diginow "supercharger" v2 is a control unit, and 1-2 bricks for a single J-plug, perhaps more if your Zero has extra battery capacity.
Two bricks fit comfortably in the empty tank area under the factory plastics. Brandon's machined aluminum piece with a pair of fans exhausting through the steering is very effective.
Third brick is a trick, but Anton and Brandon have done it successfully. Cooling becomes the issue and perforation might be necessary.
Ordering plastics, hmmm... do you have a storage area in your plastics? Do you mind cutting it away? I think that's why people order plastics. But you wouldn't have to. Personally, my tank plastics are in storage, and I'm using a honda CBR600RR cover I got on ebay. But you may be more finicky about fit and finish than I am. Most people are : - )