Mike, I haven't sharpened a V chisel, so these thoughts are of a general nature. I have become a great believer in using the marker on the bevel. I test the setting by turning the wheel a little by hand. The hand motion indicates the setting with removing next to no metal.
I recently bought a Milwaukee twelve volt LED flashlight. It uses the same batteries as my drill/driver and impact driver. I have been amazed with how useful and bright the LED flashlight is. If the Tormek replacement knob seems pricey to you, no doubt the Milwaukee LED flashlight will, too. However, I am sure there must be lower priced very usable LED flashlights. The bright, very directional light might make it easier to see the anglemaster. It is easily movable as it is handheld. It is certainly a visual improvement over the florescent lighting my my shop. Lee Valley sells an interesting light, which is probably available elsewhere.
Good luck.
Ken