First of all, max your guilds all to lvl4! Looking at your build, this seems ok though.
Second, build a troop building! I prefer one CoE, but up to you. You are trying to grow as a pure spy, which is nonsense. You miss out at least 1/3d of possible gold in ebs. And you'll need around 6b in allies at lowland complete for max ally bonus plunder.
My building advice: continue buying land and building guilds lvl4. Converting your guilds now one by one will terribly hurt your plunder...