You'll be just fine hopping the way you normally do. Bitterness can mask just about anything, sure, but do you really want so much bitterness that you can't taste the sorghum? I think it's better to do lots of flavor/aroma additions, especially with citrusy hops--they really play well with sorghum. I'd probably halve the Falconer's Flight, and do 1 oz of citra at 10 and another at 5, and then dry-hop as you would. Other than that, everything looks good--1 lb of maltodextrin shouldn't be a problem. Oh, but make sure to use Candi Syrup, not Candi Sugar. They ferment very differently, and leave much different tastes.