1. you probably will. not sure, let see what other say. if i remember to count current annual income = XXX amount of money per week X 52 weeks. so if he only work untl november 2022, u have to count until that month
2. i-130 he can use his, i-485, i-131, i-756 it will be under your name, so you will get different number
3. yes u can file without i-693. but in my experience in february 2022, i filed it together. the more i can submit to them the less chance i got RFE. to each their own.