Being another who is not challenged by an abundance of follicles, and who also suffers the not too infrequent scalping issue, including on our 19 door frame, I have used VHB tape to hold some ¾ red PEX tubing such that it acts as a buffer to the sharp (scalping) edge of the door frame. This is a very quick and easy mod that I have appreciated several times since I did it.
While it is relatively hard it replaces the sharp edge with a rounded surface. I find the red is more visible than the blue but to date I have not felt the need to illuminate it. Although with some LEDs it might make a nice entry light or night light.
I also agree the SAM-1 conversion is well worth it’s cost. For all the reasons mentioned previously.