AFAIK, there are no scholarships besides the ones mentioned.
So, UWA COA (total costs) = 50K, direct costs (what you pay to the university itself) = 47K. It’s unclear but it looks like internationals are not eligible for merit aid OR may be eligible for 4K (I don’t think Purple and Gold is available to internationals; for others who may be reading, UWfromCA is correct, there are scholarships up to $8,500 for OOS residents). So, you’d pay 43K at best.
You’d have to email the Dean directly to know if you’re eligible for tany competitive scholarships as an international.
Penn State Schreyer isn’t much cheaper: PSU COA (total costs) = 49K, direct costs = 42K, and if you get into Screyer the scholarship is only 4.5K, so you’d pay 37.5K at best.
Note that both Honors Colleges are very competitive and admission there cannot be considered a safety.
In addition, admission to some majors (especially CS at UWA) are especially competitive and would be reaches or matches depending on stats, certainly not safeties.