thank you all for the replies. although the video Robin pointed out is a ryokatatori, which is close to munetori, I personally prefer the method used in that video because the method in MrIggy's video seems more "staged". I'm doubtful that a person of roughly the same size can do that from that position without tearing some clothes, especially if the uke is holding and resisting with full power..
those videos gave me some ideas though. thanks again