Yep - The Monster boxes went to Rhino. I been after one of those medium boxes for yeasrs - shipping had always been a show stopper. This year I finally got a decent deal on shipping and made the purchase through TC Distributing. You are out in the mid-west - good chance you can find one from a dealer and pick it up in person. They are the greatest ice-fishing system there is, IMO.
Good luck to you and hope you find one reasonably priced.
When I was looking this past summer, there was one on Craigslist. Can't remeber where it was, but it was out in the mid-west somewhere.