The problem is that you will start wit NEGATIVE production values and very soon run into debit insolvency unless you start building a lot of farms ASAP.
Acidently, it is easier to mod in Proportions: leave Cultural centers to produce organics but make all low level facilities, like mineral miners to consume organics - it will imitate shiping of food and supplies from Homeworld to colonies !
BTW, is it possible to assign negative values to research or inteligience ? I am thinking that once Deeply Religious Race builds a Temple to some fearsome God of destructioun, the scientific research on that planet should suffer...