Bow: Something forgiving (I'll sell you my '06 Old Glory dealer bow if you're interested: 70#, 30" RH) otherwise the Allegiance is an excellent choice.
Arrows: Something moderately heavy to carry KE out there. A/C SuperSlims or ST Axis are good choices.
Vanes: The 2" Blazers have impressed the Hell out of me with both expandables and big fixed blades out to 60 yds.
Broadheads: I'd go with an expandable on caribou rather than a low profile for the increased wound channel size. (JMHExperience) I like the NAP Spitfires.
Sights: 20-30-40-50-60 with good light gathering fibers (Fitz Fiber retrofit if necessary).
Get a good range finder! If you're going to shoot that far you need to be right on the money!