IPA with local hops (unknown AA%)

I managed to get my hands on some locally grown hops from a small hop farm and am interested in using them in an IPA. Here's my first crack at a recipe - a few questions follow:

Recipe Specifications
--------------------------
Batch Size: 3.25 gal
Boil Size: 2.60 gal
Estimated OG: 1.059 SG
Estimated Color: 9.0 SRM
Estimated IBU: 57.1 IBU
Brewhouse Efficiency: 70.00 %
Boil Time: 60 Minutes

Ingredients:
------------
Amount Item Type % or IBU
2 lbs Extra Light Dry Extract (3.0 SRM) Dry Extract 33.33 %
2 lbs 8.0 oz Pale Malt, Maris Otter (3.0 SRM) Grain 41.67 %
1 lbs Munich II (Weyermann) (8.5 SRM) Grain 16.67 %
8.0 oz Crystal Light - 45L (Crisp) (45.0 SRM) Grain 8.33 %
0.75 oz Newport [10.00 %] (60 min) Hops 43.6 IBU
0.5 oz Cascade [5.50 %] (10 min) Hops 3.4 IBU
0.5 oz Cascade [5.50 %] (5 min) Hops 2.8 IBU
0.5 oz Cascade [5.50 %] (0 min) Hops -
0.5 oz Cascade [5.50 %] (Dry Hop 7 days) Hops -
0.50 tsp Gypsum (Calcium Sulfate) (Mash 60.0 min) Misc
1 Pkgs California Ale (White Labs #WLP001) Yeast-Ale

Partial mash at 150F for 60 minutes

Questions:
1) Recipe look OK? I was thinking about adding some sort of sugar to help dry it out some, especially with the extract in there. Necessary? Worthwhile?
2) I'm using the "average" AA% values for the hops for the IBU estimate - their actual AA% is unknown. Any reason to err one way or the other on these?
3) These are whole leaf hops. I've only ever used pellets. Anything I need to adjust?

2. When I use my own hops for bittering, I use an average value for the AA% and aim for the middle of the IBU range.
3. Since you don't know the AA%, I wouldn't bother.

david_42 said:

2. When I use my own hops for bittering, I use an average value for the AA% and aim for the middle of the IBU range.
3. Since you don't know the AA%, I wouldn't bother.

Click to expand...

Thanks - I'm aiming for 55-60 IBUs, which is hoppier than any beer I've brewed outside a barley wine, but which I think will be a good level here.

This is my first IPA - does the hop schedule and amounts look OK? This is for a 3 gallon batch.