Need advice on this account.

I got an account with 75 attack 93 str 20def. Im not gunna make it members anymore just gunna make it a f2p pker. Anyways should i just get the defence to 40? also im thinking of maybe raising the attack to 90ish.

EDIT: its 82hp and 85 combat.

 

dude dont level defence in f2p. trust me do not.
you need to level defence by quests in p2p otherwise you can ruin your account, really ur not supposed to train def at all to be a good rune/zerk pure
but im pretty sure you'll get away with 25 def cause i know at 20 def u can still be a zerker pure with 45 defence after all the quests that you need for rfd and such.