I did play old school Runescape back in the day, so I do have a little bit experience with the unlock and appeal systems myself :)
I'm a experienced developer, and I have a fair amount of experience with for building user-like requests like these by gathering cookies and meta data programmatically, and I'm confident I can make this work on the current Runescape website. The email account creation, and proxy implementations will also be fairly straightforward. If you have any questions for me, please message!