Two years at $45k each, so $90k total? Or some other amount? And is that without any loans?
If $90k total, then your budget is about $18k per year, or $23k per year if you add the loans that you are able to take.
However, if that amount requires loans, you may want to investigate full rides like the Presidential Scholarship at Scholarships - Alabama A&M University (no AE, but ME has a subarea of propulsion systems, which is not surprising given its location near a rocket facility). Or at Freshman Scholarships | Tuskegee University where there is an AE major.