It depends on how much claw scrolls are on your server.. If it's really expensive then I'd get the 35attk claw..
Let's just say Scania's claw scrolls are 2mil each.. 7 of those will cost you around 14mil AND scrolling is risky.. you might even end up doing badly.. either way.. a 35attk for 3.2mil is very beneficial for you.. I would get it. Remember, you dont keep lvl 50 claws forever. Save the mesos for Gigantics and Scarabs. These will be expensive.