Looking for the black widow danger and clear gas mask spare ball.

haven't seen the gas mask clear anywhere yet, but have you tried The Hammer Booth for the BW Danger? They had a number of those in stock at Nationals a couple years ago. It may be worth hitting them up. You can ask for them if you call the Stadium in Reno, or hit up The_Hammer_Booth on Facebook (I think that's their site; I don't use FB).

BL.