At 90 dung it's worth $60-75. At 100, $100-120. 120 dung is $300+. Having 34 payer might make the prices go down a little bit, by the way.
120 Dung will take you forever, however, you wanted a Price Check, So i would estimate it at around... $350-400. I wouldn't say anything over $400 even on a good day.
^ Lol, its probably worth almost 80$ as is and i'd get 44 prayer to make it look like an actual pure, quest it though
44 prayer could be considered a fail pure. It is easy to get those prayer levels in no time, the down fall is you won't be able to undo the damage. 44 prayer is not a "actual pure" unless your a RANGE pure. Even if your a range pure you should be going for rigour which this account is obviously not a range pure. It has monkey madness done for all of those that are curious and I will quest it more at 99 dung +. Should I get 80 attack on it yet?