Would do it as 2 separate trades
Brown -> pick 13
Stevens -> Cripps in a straight swap
Pick 13 + Cripps is way too greedy
I think pick 13 is fair but every draft is different and they may think Brown has more value than the players who will be there. Cripps really has not much value. St Kilda admitted a few weeks after the draft they made a mistake selecting him so high because they didn't know about his condition. If he wasn't a 1st round pick no one would even be talking about him. He would not make our rd 1 team. He could be handy in the future but he is not a priority in any way shape or form.