From: putonajonny
Giving an idea of xp per hour is good, if it is profitable give amount per hour, if not give gp/xp please
http://runescape.wikia.com/wiki/YakYak: 500 lifepoints = 200 combat + 67 hitpoints xp
100% yak hair drop
http://runescape.wikia.com/wiki/HairHair is a 100% drop from the level 22 yaks outside the village of Neitiznot. Players can use it on a spinning wheel to make rope using the Crafting skill. Making a rope requires level 30 Crafting and grants 25 Crafting experience.
Rope = 116 gp
Combat xp/h at yaks is roughly 60k xp/h which equals to 300 yak kills per hour. Which equals to 5 yak kills per minute.
28 yak kills is ~6 minutes
Spinning them would be around 1-2 minutes I'd say.
Total of 60/7.5*28=224 ropes per hour
224*25=5600 crafting xp/h
224*200=44800 combat xp/h
224*200/3=15000 hp xp/h
116*224=26k profit/h
It would be nice if people that requests scripts would also take 3 minutes of their time to do some calculations.