Winch set up on trailers

I would like to mount a winch on my open deck car trailer and just wondering what you guys have done. i will more than likely make mine portable so I can keep if from getting stolen but also have deck space when i need it.What size of winch did you use also? If anybody has pictures things like that would be great.

not very good pics, but i just built a bracket that mounted to the angle iron & floor & 1 that hung off the front near the frame rails for the battery box. it was a 5500lb i think & never had any problems pulling anything on it. mine wasn't removeable but i had 8 bolts holding it on & figured if someone was dumb enough to risk a bad case of lead poisioning they deserve it lol.