Yeti (my first all grain)

Ok, so I found this cool mash tun that I made a knock off of and I used as my inspiration to take the plunge into all grain brewing. I am going to put down the details of this Great Divide Imperial Stout, Yeti clone that I got out of Brew Magazine (that my wonderful wife was so kind to get me a subscription for) and I will put a separate entry for the details on my mash tun monster that I built. Cheers- Travis

Great Divide Yeti- Imperial Stout Clone
Base Grain- 15.25 lbs American 2 row malt
1 lb- Crystal Malt
12oz- Chocolate Malt
12oz- Black Patent Malt
10oz- Roasted Barley
8oz- Wheat Malt
8oz- Flaked Rye
1.1oz Chinook Hops (60min)
.55oz Chinook Hops (30min)
.45oz Chinook Hops (20min)
.5oz Chinook Hops (5min)

OG- 1.050
FG-1.005
ABV- 5.85%