Shamelessly stolen from TFW2005 member Blade Raider.... turn Krok around, repaint and add a new head. I'd rather a Galvatron titan master head but I don't have any spare lying around.
https://i.imgur.com/mrYvapM.jpg
https://i.imgur.com/975ppL0.jpg
https://i.imgur.com/MOqkmvQ.jpg
https://i.imgur.com/TJYwhoy.jpg
https://i.imgur.com/cYyifmU.jpg