There are a few basic principles of action. But to combine them into a cohesive whole seems hard to do. Like Michael Huemer said there does not seem to be an algorithm  of morality. Even though he holds bu objective morality he doubts that there is a formula how to figure out the right thing in any given situation.

You might try to pick on one basic principle, and that makes sense to some degree.
Still what I think is that morality is an organic whole. There are principles that fit together like parts of a human body. Each part has its own function.

Rav Haim Kinyevsky, [one of the great Litvak sages] said that when any group  emphasizes any one basic principle, always the result is the exact opposite. Rather you need balance

To me this issue seems to be something like what Hegel was doing. Thinking that he could make sense of the big picture and showing the inner connections of everything with everything else and by a process of dialectic to get from Being to God [the absolute Idea]. [I imagine he did not want to use the word God to identify the Absolute Idea.]


The possibility to have some kind of algorithm of action seem to be along the lines of Kelley Ross building on Leonard Nelson.[That is the Kant Fries School of thought] [That is Kelley Ross has an array of values that looks like the half circle of angular momentum.] That is you start with all form and no content --formal logic. Then work up towards more numinous content but less form. That is Math proper since it can not be reduced to pure logic. And you work up until more numinous content like Music and Justice. until you get to God--all numinous but no form