Not the guy you asked, but I think overtime should be at least double pay and not 1.5 pay. It shouldn't be cheaper to overwork a skeleton crew than it is to hire adequate staffing.

Idk, a 4 day work week for starters. If you're asking specifically about what would be reasonable instead of overtime, I really can't tell you. Being able to show up late after nights you work late would be a good start.