Are there figures for fuel, ammunition, and spare parts? Might be something in Striker.
From Striker, Book 2, Page 37, Rule 68d Supply Troops:
The unit's basic load of food is equal to 14 kilograms per man (two weeks rations). The unit's basic load of ammunition is enough ammunition to supply each weapon in the unit with 80 fire phases. The unit's basic load of fuel is enough fuel to supply the power plants of every vehicle in the unit at full output for 24 hours. After determining the weight of the unit's basic supply load, add 10% to the required vehicle tonnage for ferrying supplies and restocking supply points.
More on topic are Rules 72 & 73c:
Personnel cost Cr10,000 per year for militia, Cr20.000 per year for conscripts, Cr30,000 per year for long service professionals, and Cr50,000 per year for picked troops. This cost includes upkeep on all supporting facilities, salaries, civilian support personnel, pensions, training costs, etc.
Somebody in the GNP thread said that the Striker rules were invalidated. I find that hard to believe. There were similar rules in a couple of TNE books and one or two of the GT books. They also included similar tables to the one Aramis posted.
I'm gonna have to go dig through them now.