An estimate of the % to #s that would give you the ABV of 9% is as follows:
17 lbs. Pale 2 row malt
1 lbs and 10 oz of Crystal 80
10 oz Chocolate Malt
10 oz Roasted Barley
6 oz Black (Patent) Malt
I am sure you could just go with 17, 1.5, .5, .5, and .25 if you just wanted to keep it simple