Yes very doable! I have a high end mixed reef, waterbox 3620 peninsula semi automated. That means i feed my fish daily (could easily automate but i like to do it) and clean my glass every 3-4 days.
i do some tasks weekly, but could easily skip them for a week.
My tip would be, don’t go to big, don’t go to small. Stay somewhere in the range of a 300-400L tank.
Just start of with some softies, and slowly advance to the more easy lps corals. I am sure you could have an amazing softie/lps tank with even some hardy sps corals in combination with your work. As said though, it’s going to be a heavy upfront cost.