I got Mansion of Apocalypse yesterday and Wrath of Hell today , so yes, it can be done and in a lot less than 500 turns altogether. What looks impossible at the moment is level 17 spy skill @ 786,432,000 and 17 units per turn production @ 655,360,000 gold. Could anyone be even bothered to try to get these ??
No i hardly ever get attacked any more except maybe from a random noob whos trying to figure out how to play. I dont think anyone on page 1 attacks each other because on average their defences are way way higher than their attacks and you could quite easily get your ass handed back to you !!!