mainly because I don't know any better
You made me laugh- thanks for that. I love honesty!
IPAs are usually over-the-top hoppy, with American hops for American IPAs and of course English hops for English IPAs (which tend to be a little less hoppy).
An American IPA is filled with hops that can be resiny, citrusy, floral, or earthy, but not usually with German noble hops. Denny's Rye IPA posted above is an exception- the Mt. Hood works great in there! But the hallertauer addition at 20 minutes won't do a thing for your beer- it's too mild and will not bring anything to a rye IPA that you'd like.
I'd suggest choosing hops like columbus, chinook, cascade, amarillo, citra, simcoe, or centennial, like this:
warrior 60 minutes (I like .75 ounce or so, to get you to 45-50 IBUs)
1 oz centennial 15 minutes
1 ounce cascade 5 minutes
1 ounce centennial 0
dryhop with both (or sub your favorite American hop variety)
For an IPA, you need more hops, late in the boil, and usually more assertive hops than hallertauer or at least one with a good flavor that will stand up to the bitterness you want. Rye is spicy, and great, but you want hop flavor and aroma also.