Yes, limit is on number of units in space. Troops are unlimited, even on transports. Massive numbers of ships or units in space aren't necessarily a particular feature of Proportions, as far as I know. I just think the higher the theoretical limit, the better. I know it's pretty easy to hit 1,000 units in space even in a small normal game.
There are two kinds of black holes in Proportions - one is stronger than the other. The other one is like before. But ya, I try to introduce some evil from time to time.
Infinite resources, yes.
We can do a smaller quadrant - that's probably a good idea for increased interaction. Maybe Small, or Medium if we get 8 players.
PvK