Simple. don't train defence. lol jk, i have all this done on my pure. nice guide though
also, you should add in that if you do monkey madness for the d Scimi, once you finish you won't be able to go back at all which means you can't train at skeletons for like 4x the amount of xp you'd get for chinning(Red chinchompa training).
Edit: Also add that you NEED to do the two gnome quests before monkey madness BEFORE you get 60 attack because they both give you attack experience. 60 attack is optional, but whip only trains attack so there's no point in getting higher than 60 unless you are going for a 99 attack 1 def pure.