As far as LOP goes, it really doesn't make much difference how tall you are. Some people are longer from the waist to the neck and some are longer from the waist to the ground. It is feasible that someone who is 6'-3 and someone who is 5'-9 could have the same LOP. Measure the length from the crook of your elbow to the first joint of your trigger finger - that will give you a better idea of your LOP. Also, not ALL guns with the same LOP will feel right to you. The drop and shape of the buttstock also have a lot to do with the fit or comfort of a gun. All you can do is shoulder as many different rifles as you can to find one that fits YOU proper.
Maybe I'm an anomoly, but I seem to be able to comfortably shoulder and shoot most anything. I have a CVA squirrel gun, several GPR's, a couple Hawken style guns, a Blue Ridge and a couple of customs with custom LOP's. I have shot them all with little to no any discomfort due to LOP. I have more problems with a gun that does not have much drop (makes it difficult to see the sights easily and can cause the dreaded "cheek slap") than with a longer or shorter LOP. BTW - I'm 6'-2 and prefer a 14 1/2" LOP.