My scenario

I made a FFA faction scenario using the Ancient map.
http://prntscr.com/ndgv74

I tried to balance it using google sheets. My goal was to make each faction have a similar amount of reinforcements. I did edit the country incomes a bit to try to balance that out but I was less strict with that because its not a large and I don't think that will make much of a difference. I also considered location, neutral countries nearby, and available units. I give each faction 20 extra militia near the cap and I gave vikings 3 additional vikings.

These are the values I currently have for each faction
http://prntscr.com/ndgyne

Is this a good way to balance a scenario like this?