Because I am a nice lefty plese see the following off the shelf holsters that will work for your specific firearm.
I can speak for Desantis as I own their holsters in lefty models and like them. I don't own an lcr but I have two OWB holsters from them one for an SR22 and one for a smith J frame.
http://www.desantisholster.com/store...STERS/Intruder
http://www.desantisholster.com/store...ERS/sof-tucktm
http://www.desantisholster.com/store...S/Tuck-This-II
http://remoraholsters.com/
Remora is ambi and usually they fit more than one gun Model which is also nice.
Regards, Vermonter