Chuck: Some seriously good advice on your link under Mountain Flying. Alpha System Lift Reserve Indicator
Yes it is a good system and I am installing it in a Cub project I am building for off airstrip training on big wheels.
I will have the vertical led light projected on the windshield so it will be right in the line of vision during the approach.
If using an AOA indicator is good enough for carrier landing it should be good for any other airplane.
With the led light AOA indicator the target is the blue light which is optimum Alfa.
As to wind gusts yes there are circumstances where carrying extra airspeed is an added safety margin....but if it becomes necessary to add speed not only above optimum Alfa but also above 1.3 of stall you won't be doing a very short landing.