Just had another thought, seeing the 16x10 are -26mm and the Wats for ZG's are usually in the 16x9.5 -19mm the Superlites would stick out 13.35mm more than the normal Watanabe ZG configuration. My wheels are 9.5" wide -19 and they sit at the lip of the ZG flares at the rear so you would need wider flares to fit the rear 10" superlites assuming they don't rub the stock spring perch on the inside which I dont believe they would.
Watanabe 16x9.5 -19mm, distance of outer rim lip, (or close to as I don't think they include the lip when measured), to the flat of the rim that mounts to the hub would be 139.65mm.
Superlites 16x10 -26mm, distance of outer rim lip to the flat of the rim that mounts to the hub would be 153mm.
...anyhow you probably not looking at this size wheels but just sharing some thoughts.
Sulio