my IIBA recipe

so here is my first attempt at putting together a imperial india brown ale. Any input, suggestions, or comments welcome.

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Boil Size: 8.76 gal
Post Boil Volume: 6.76 gal
Batch Size (fermenter): 5.50 gal
Bottling Volume: 4.75 gal
Estimated OG: 1.083 SG
Estimated Color: 25.9 SRM
Estimated IBU: 109.5 IBUs
Brewhouse Efficiency: 72.00 %
Est Mash Efficiency: 86.5 %
Boil Time: 60 Minutes
Ingredients:
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Amt Name
12 lbs Pale Malt, Maris Otter (3.0 SRM)
2 lbs Brown Malt (65.0 SRM)
1 lbs Honey Malt (25.0 SRM)
8.0 oz Chocolate Malt (450.0 SRM)

1.00 oz Admiral [14.75 %] - Boil 60.0 min 38.6 IBUs
1.00 oz Admiral [14.75 %] - Boil 40.0 min 33.9 IBUs
1.00 oz Brewer's Gold [8.00 %] - Boil 30.0 min 16.1 IBUs
1 lbs palm sugar [Boil for 30 min](0.0 SRM)
1.00 oz Brewer's Gold [8.00 %] - Boil 20.0 min 12.7 IBUs
1.00 oz Fuggles [4.50 %] - Boil 15.0 min 5.8 IBUs
1.00 oz Fuggles [4.50 %] - Boil 5.0 min 2.3 IBUs
1.0 pkg California Ale (White Labs #WLP001)
2.00 oz Fuggles [4.50 %] - Dry Hop 0.0 Days 0.0 IBUs

Mash Schedule: Single Infusion, Full Body, Batch Sparge
Total Grain Weight: 16 lbs 8.0 oz
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Name Description Step Temperat Step Time
Mash In Add 23.38 qt of water at 166.1 F 156.0 F 45 min
Sparge: Batch sparge with 2 steps (0.90gal, 4.88gal) of 168.0 F water
Notes:

ok i guess i will just brew it