I didn't bead blast mine...a scraper did the trick. My car had over 30 pounds of the stuff, and I left 25% of it. I tend to doubt that a horn is 30 pounds. or a washer bottle. More like 1.5.
You don't. In exchange for you deciding to invest a few pound and little time in your won safety, you are allowed to remove all the door crap you list. Just add a horizontal bar that protrudes in the door cavity. See "NASCAR bars" in the GCR. That's a win win.
As for wipers and HVAC, see my previous post. Some folks need them...why should they be at a disadvantage? It doesn't cost anyone anything to leave the stuff in the car.
No offense, but you frighten easily.
It's safety glass....when was the last time you heard about a guy in a full suit and gloves, with a helmet and probably some form of glasses and/or shield getting hurt by broken safety glass? That is SO not on my list of things I worry about.
Who said that?? We might suggest that yea, driving a race car to the track is increasing your odds of walking home, but I drove mine to the track for many events. Walked home twice. I had coilovers, and cranked 'em up when I was going too the event. And I had taller rear springs that I swapped in and out. PIA? Sure! But, I did it, and I'm proud to say that I was one of the fastest, if not the fastest of my class/type. We CAN do lots of things, but we CHOOSE to do things that meet our needs and wants.
So, he builds a car and doesn't read the rules...then poaches your buddies to leave the class and join him....THAT'S a reason we're supposed to change the rule book!? Priceless....