As the previous links have all gone to dirt, I attempted to search for the topless Dota 2 mod again. Not only did I find the official blog of the person currently working on it, but he/she also started making complete nude Models of the characters, which should work in source filmmaker when doing the conversion process.
http://m1sk4.blogspot.co.uk/p/dota-2-bo ... 3hMqPldXE1
Current Working WIP Queen of Pain:
Just wanted to link it I am guessing, hope this will be very useful to everyone.
Link to aforementioned conversion process: