I use an Apex XQ50 LRF roof mounted to a weaver rail fixed to my lightforce handle. The Apex is on a QD mount and attaches to the weaver rail in seconds, connected to the video out. When I need to use it rifle mounted I can within seconds, but to be honest it's my permanent vehicle mounted unit now. When I get to the land I'm shooting on , I just clip it on and I'm away, I just use the EPS3 powerpack thats lasts all night rather than run additional leads for power. I must admit for my style of shooting, traveling down farm tracks and covering lots of land, the unit mounted to a lightforce bar offers very rapid 360deg scanning and precise position for when combining with the LRF and pinpointing on small heat signatures..
In fact I could not live without this setup, it gives me full coverage at height, rapid scanning and on screen distance display , I do not use a spotter from the vehicle at all only when on foot...for me this setup is beyond value and probably my most valuable hunting tool.