Yes I did. It was pretty straight forward. Keep on looting and going back and forth to different cleansed points and enemies will respawn till you have enough of the right material then you can simply go through your final upgrade.
Also make sure that you are doing the side missions including the one named Shum as it will drop loot for you, same as well for vending machines they should be enough.
Anytime! Always glad to help. I will probably wait for a guide to go through the hidden locations, collectibles & Vending machines. Everything should be done once I am done with the story, maybe go for a couple of arcade levels to finish the 25 rangers too.