I feel your pain, mine gave up the ghost while I was clipping a different part of the sprue sadly, now he is a little shorter than he should be lol.
The Strap on mine is on his left side waist, pretty much where your belt would be.on his left leg around his thigh he has a little strap moulded on, a little way up from there, perhaps 1 cm, is where I have my strap attached. Attached it reaches up to his left arm at the shoulder.