I say keep em secret. At MOST provide a very vague rangy type number but really rather it be secret and people just sometimes not pay enough or overpay a little or have them be more direct in what they want. The partial infra is good and once we are a ways in most nations wont be adding 1-2 industry when they add industry anymore.
Players also need to realize that many nations will simply never be great and that is fine. Brazil will not be the #1 nation, Russia will never be the #1 naval power and odds are the Ottomans will never have the #1 army but come up with goals fitting your nation and chase them. If you do a good enough job maybe the nation can climb the ladder a bit and perhaps become much greater than historically it did. There is no reason that good play cannot lead to an existing CSA, the fully realized Japanese empire, a strong Russia WITH a navy and stability to boot or in my case a Spain that adds to, not loses more of its empire by 1900. ((yeah yeah 1900 waaay away but momentum wise.))