The space required to run a goods building starts out at around 3 expansions worth of space. In the beginning, that's shacks and shrines. Once you get huts, your needed space for population drops by about a third, and I'm able to run 4 goods buildings in 9 expansion spaces. Exactly what good you are producing is largely irrelevant, the larger goods buildings require less population (although they do require slightly more space overall to run, it's not significant). They all require the exact same amount of coins. Impediments will throw a wrench in the calculations to some extent, but to start you can ballpark on 3 more expansions to run 1 more goods building regardless of which good it is. There really isn't a point to a strategy document addressing which goods buildings to build when unless it is touching on which good to buy expansions with.