First of all, cograts!

As father of a 4yo and a 2yo, the only thing I can confidently say is that if available/possible, they need their dad to be around as much as possible. With this in mind, try to find a solution that works for everybody in both the family front and the financial front, but that doesn’t mean they get cut off of your presence.

My 4yo wakes up very early in the morning just to be with me, and my 2yo stays late at night (for her hours) just to be with me.

I’m very happy for you. Having kids is a wonderful experience :)