@ril SDI cable is not super expensive for 1.5ghz and can go easily 100m or more depending on quality. It is easy to repair on site and there are a lot of options, pretty close to the cables for AHD cameras. SDI is pretty specific so I doubt there are cameras that are "not specifically SDI but that do have that SDI output"
The mini recorder will work, but only at 1.5ghz rates like 1080i 50/60 and 1080p25/30 or lower. At any rate it is a good combination, the lenses are cheap and the security cameras usually have an OSD with manual settings.