Here is what I would suggest:

Add grains to a grain bag, steep in 2 Gal water at 155F for 45 mins to 1 hr, stirring occasionally. Remove grains, add extract and bring to a boi l.

Total boil time 75 mins.
-Boil for 15 mins, then add bittering hops.
-Continue for 50 mins, then add aroma hops (10 mins before knockoff)

Cool to pitching temp, pitch yeast (build a starter for the yeast)

Add dry hops after fermentation has completed, so the escaping gas will not carry your hop aroma out of the airlock. I would probably ferment in primary for a week, rack to secondary and add the dry hops after activity had subsided. Others have suggested using primary only, just wait till all fermentation activity has subsided.