1 Silverstone 80mm fan, which is a Everflow 128025SL fans. Black sleeved. Product link. They do not have any bearing noise compared to say a Panaflo L1A, but they do have a whooshing noise at 12v from the air they move. $4 each shipped.
1 Panaflo 92mm FBA09A12L-1BX with a three pin molex tail and RPM sensing $6 shipped.
Shipping outside the U.S. will be exact cost for your desired method.