Well right now you are ass fuck broke so you can't buy hardly shit. After your first contract, if your still alive, we will set up an abstract monetary system, rather than keeping track of C-Bills.
It will probably be something along the lines of your Unit has a 'Wealth' skill, just like a player would have 'Streetwise' or 'Bargaining'. To get certain things, the GM (Me) will set a target number. You would only get X rolls per game month to obtain equipment, information, favors out of the Unit bank account.
PM or email me with any ideas any of you have for this system.