Finally getting to it!!! 1970 Duster 340

I think that I 'm going to put in LED lights in my dash 'cause my old neck can't handle being squished up against the floorboard like it use to. I'm looking at cool white 5 LED bulbs for the dash cluster, green single LED's for turn signals, cool white single for the high beam and a red single LED for the brake light.
I've read a bunch of LED posts and that's what Ive concluded from them. I would appreciated anybodies input about my selection. I'm looking to improve visibility over stock. I've read mixed reviews about whether the lights will be able to be dimmed afterwards.