Looks like a delicious piece of Kiita, or maybe Shobudani!!! Is it ripping fast? Looks to be. Or, since it sucks up water, sounds and looks like my Awatani Kiita.
OMG!! Is there a high grade Koma in there?
Looks to me as though there is indeed a rare high grade Koma. Congrats! Put it to good use. You will have lots of fun with it.