You save $270 on the Open Box Panasonic GH5 sold by Samys on eBay (Click here). You get the full 1 year Panasonic US warranty on it.
You save $100 and get the 12-50mm lens for free with the E-M5II at GetOlympus (Click here) and BHphoto (Click here). At GetOlympus add first the camera and then choose the lens.