What is Adrian Peterson's trade value?

I'm in a 12-team dynasty league, about to head into its third year. It's a 0.5 PPR, with 0.75 PPR for TE. We have to start 1-4 RB per week.

Whether I should trade him is another question, but I'd rather hear what folks think his value would be in a trade. I think I'd want a 1st round pick this year and something close to that in 2017, as I think AD will outperform most picks this year (I already have the 1.01, so a first round pick is likely middle or back of the first round) and of course 2017 is more of an open question. Is that crazy?

FWIW, I have on my roster DeMarco Murray, Ryan Mathews, Jay Ajayi, DeAngelo Williams and the first pick in the draft who I plan on using on Zeke Elliott. I don't really need AD but of course for 2016 he's still a top-3 RB and probably top-5, certainly 10, in 2017 assuming no injuries. Thoughts?