I've looked and have not found anything specific to level numbers but I'm sure someone has made the spreadsheet already. The only guides are just on how to level up as quickly as possible which I think would be just as useful. I haven't know everyone to plan the resources perfectly because you still have to wait while those upgrades are in progress so that gives you time to collect resources for the next upgrade unless you're planning on crowning all the way there.
Roads to lvl 7 since the xp bug ends there, than traps, double armory, double library, all traps, than whatever else uses the least citizens for xp like caravans and such. I know it costs crowns for armor and library but I saved plenty up and the unlock cost isn't that much. But I got there with just doing generals and traps all day everyday. Traps aren't that expensive either which is good and use only 1-2 citizens while adding some def to you're base which is a plus to me.