Thanks for the reply iTown,
Unfortunately goods increasing in price as you progress is simply a reality we all know about. Before we formed this guild, it was costing us 235 Goods units x all 5 goods to unlock a single sector in our former guild.
As for multi-age GvG that is what we are trying to avoid. The goal will be to play GvG ONLY in the Colonial Age and when more than 80% of the guild members are ready to progress then we will move into the Industrial age as a team.