Unknown X,
With your current mod, some of the factories require you to have more than a thousand of a particular resource to build (say 1,900 cement). THe world market slider is fixed at no more than a thousand; so you can only buy up to a thousand and it will take many, many years to get enough cement to build the factory. I know that you may want to slow down factory building and that you want to force people to build more basic factories, but 1,900 is too much. I would limit it to no more than 1,400. Another factor of the market is that there are few factories that do more than break even (if you don't have railroads in the province). For example say steel cost $10 on the world market but costs 2 coal ($2) and 2 Iron ($2.5), total cost of coal and iron is $9, so producing steel you make $1. There are other factors, but the market doesn't have any really great money makers (not necessarily a bad thing).
Varangian