A good number of schools that have guaranteed assistantships (like Bowling Green where I'm at) just use GPA/GRE to get you in the door. I would say that you'd be a reasonably competitive candidate. The big thing is making a good impression at your assistantship interviews. Here, if you don't get a match with an assistantship site, even if you were academically competitive, you don't get a seat in the program. Having a good pitch for your interests and passion goes a long way. Just something to think about.