Quick question : get unit cost

uhhh... how do we detect a unit's building cost ? eg a scout tower cost 30, i want something like

There is GetItemCostById system somewhere on forums. I'm sure it will be easili modificable to get cost of unit instead of item.

well i know there is an getitemcost, but what i want now is getting a unit/building's cost ><

ah i'll see what i can extract from the getitemcost ability O_o

Just make a function that gives a player like 50000 gold, order it to buy a unit, check how much gold is missing, take the gold back, remove the unit, hey presto theyres your amount.