just be grateful man, I get a hard work making these saves so I can help the community as much it helps me. the limbs trophy should only be a bonus, originally I did the save for the hard difficulty and level 50 trophies specifically, the 10k limbs I ended up by accidentally getting about 20 minutes later. It should be a ridiculously easy trophy on your way to the 5000 zombies trophy and the platinum as well, but it can turn out to be a problem when you use saves for everything else. and like I said before, the other saves lack this trophy from getting obtained, so its much better to grind 1000 limbs rather than 10000 limbs from scratch using a brand new save, once there isn't any other save for that on the internet (I checked). like I said, I'm just trying to help, but its hard when the game doesn't show you how many limbs are left. if that was the case i would make a 9999/10000 save, but I just can't.
