Am I missing something on not having enough mk 1 grek

I have read that there are many others like myself who have missed some form of early era gameplay (for me it was that I was an new player while the era had already been going on) and are unable to obtain enough mk 1 grek ability module. I have bought them from the store and obtained as much as I could through every possible means obtainable such as the coliseum and even the era recovery pack, but I am still missing enough to get one last character to era level 35 and it is hard locking me from obtaining rotta at 7 stars. Is there a pack that guarantees this? Or is this a bug from the era recovery pack that didn’t give me enough materials for the early levels I missed? Also I see people who don’t have enough of the higher tier materials to level all of their era toons to 135 era level. Is it just me or is this whole era thing just a complete mess with terrible communication and resources that are unobtainable after being missed? If this is the future of eras then gg.