$80k is way more than the $27k he can borrow without you cosigning or taking it as parent loans. Even with reasonable part time and summer work earnings, that is still too big a gap to cover.
However, where is the CS bachelor’s degree major at Alfred State?
https://www.alfredstate.edu/academics/majors
So Buffalo at $29k per year or $116k total (assuming in-state) would require about $80k from you (assuming that this is cash you have, not loans) and $36k from him, which should be doable with $27k federal direct loans and $9k in part time and summer work earnings. While this is kind of a stretch, it is the best of these three choices, since it is (barely) affordable and does offer a CS bachelor’s degree major.
TL;DR: RPI is too expensive, Alfred State does not have a CS bachelor’s degree program, but Buffalo is (barely) affordable and does have a CS bachelor’s degree program. So Buffalo is the best of these choices.