I'd be up for these!
P.s. I think it should be called '1-1 high score list' not 'level 1-1 high score list', just to minimize confusion. Additionally, something to think about: Must 1-1 records be set on your first man only? I think the 'first man only' rule was originally solely about saving time for the referees, but what if someone is doing a 4 man challenge, and gets 12,500 on their last man? or on their 3rd man, so they decide to finish the board with it instead, to get a 1-1 1-man score? Just potential issues to think about.