Since almost everything I could say has already been said, I'll add (I don't really know if this is already planned) that a slider (or whatever) to adjust the budget assigned to individual ships building or reparing would be a nice addition. The time the ship takes to build or repair would be dependant on the budget allocated. This would allow to adjust your "ship production" to your real budget and allow for some historical situations with minor nations *ahem* Spain spending 10 years to build a single protected cruiser *ahem*.
Another nice addition would be to be able to build ships for other nations (for a price), sell your own designs to other nations o even old ships you don't need anymore (and being able to do the reverse).
I know this campaign is extremely limited but it'd be two things t have in mind for the future.
