Now you do know that you yourself cannot borrow 90K. You will have to have a cosigner for most of that amount.
And even if you could find someone to cosign, the common wisdom is that it is a bad idea to go 90K in debt for UG education. Highly discouraged.
I know you are thinking MD/PhD at this point. Speaking as someone who thought that also once upon a time, and ended up with an MD only, many students change their mind for a whole variety of reasons. Also, these programs are not necessarily easy to be accepted into so no counting chickens before they hatch.
Is there a reason you cannot create a ‘core’ for yourself at UW? Can you not take the full 4 years and give yourself a wide ranging education?