Help with barleywine.... hop schedule mostly

I've been working on this recipe for the past few weeks. I've looked at many award winning recipes to get good grasp on the grain bill.

My main questions are:
1) Hop Schedule: I want a slightly hoppy beer. i want it to be more balanced then over the top. Does this hop schedule look ok? If not, I have Amarillo(6oz), Ahtanum(5oz), Centennial(4oz), Chinook(4oz), Magnum(2oz) & Nugget(4oz) hops in the freezer.

2) Yeast/Mash: I am using Pacman for the yeast and was planning on mashing at 152f. should i go for a higher or lower mash temp with pacman.

Keep in mind this is a 3.5 gallon batch.


Recipe Specifics
----------------
Batch Size (Gal): 3.50 Wort Size (Gal): 3.50
Total Grain (Lbs): 12.88
Anticipated OG: 1.103 Plato: 24.48
Anticipated SRM: 14.9
Anticipated IBU: 65.7
Brewhouse Efficiency: 70 %

Grain/Extract/Sugar
Amount Name Origin Potential SRM
-----------------------------------------------------------------------------
8.00 lbs. Pale Ale Malt Canada 80.07 3
2.00 lbs. Wheat Malt America 82.23 2
1.50 lbs. Generic DME - Light Generic 99.55 3
0.75 lbs. Crystal 40L America 73.58 40
0.38 lbs. Crystal 80L 71.41 80
0.25 lbs. Melanoidin Malt 71.41 30

Hops
Amount Name Form Alpha IBU Boil Time
-----------------------------------------------------------------------------
1.00 oz. Nugget Pellet 13.00 21.7 First WH
1.00 oz. Magnum Whole 10.50 39.8 60 min.
1.00 oz. Ahtanum Pellet 5.20 4.3 5 min.
1.00 oz. Ahtanum Pellet 5.20 0.0 0 min.
1.00 oz. Amarillo Gold Pellet 7.50 0.0 0 min.

Yeast: PACMAN

I would think moving the Amarillo Gold to 15 minutes might increase the bitterness a little bit, but also help balance the hop flavor you'll get at the end. I don't know the answer to you're second question - sorry.