Helm took way to long, I'll auto-sell to you for 28m. Considering helm cost 2m to do (inc getting the imbue) firecape cost around 500k, then there's all the books and a bank worth around 2mish.
Hi I'm selling a fully quested 13 defence pure with firecape, slayer helm (i) addy gloves, white platebody and all of the prayer books unlocked.
http://gyazo.com/80442e5c197d36509e0a7e0e56e1f7d0
The stats are as follows:
http://gyazo.com/b3b36552b0ea7945656e5466be11ff56
If you are interested...