To get higher era GBs you need to try and get some later era friends and try and take spots on their GBs for the prints.
I have all the Gbs i need. exept the cape because I just dont think a space shuttle launch has any place in a city, really. I am currently leveling up CDM, at level 9 now but besides that I was refering to other sources, or you just have higher leveled gbs still in EMA?
as far as the obs, I am at level 10 or approaching in 2 of my worlds and trying to get bps in the last but its hard. if most people in the guild reach last level then i will have to start hunting through neighbourhood. I just dont get why this perticular GB has to be hard to find BPs, It helps out guilds only, if anything it should be the most common bps to find.