Timeline of the patriarchs (Moses, exodus, genesis, myths, Adam)

[gnostic]

I was wondering if someone could help me?

Last year, I had used the Genesis to work out the timeline from Adam to Joseph, and I had recently post this in my new website called Dark Mirrors of Heaven.

Although, this is completed as far as the Genesis is concerned, I am curious nonetheless of the post-Genesis, but I get stuck at this stage.

Has anyone worked out the time period between Levi and Moses?

I know that there is a bit of record on Moses's family in Exodus 6:14-27, but it make it difficult to work out from one generation to the next. All I have is the ages of their deaths, from Levi to Moses' father. I know how old Levi was when he died, but not his age when Kohath was born. Moses' line is Levi, Kohath, Amram and then Moses.
I know that Moses died 120 years old, and the exodus from Egypt started when he was 80 (because they had been wandering through the wilderness for 40 years). But how old was Moses, when his son was born.

In Genesis 5, 10 and 11, you can estimate the time between the one patriarch being the father of the next future patriarch being born and the time of his death. Exodus 6 doesn't provide us with that extra date. Without the extra date, you can't do a proper calculation. So I am more interested from one generation to the birth of a new generation, and not their time of death.