So get some co-ords. Just get in a car and go to the exact spot for it to spawn then put the x, y, z and rotation like this: {x, y, z, r} eg: {1234.567, -321.456, 23.910, 165}
Done, the locations are in the spoiler in the main post. All locations are within San Fierro. Sorry for that short post, I just dont feel like I need to write anything else. The request is done.