bigger brakes and 5 lug update on mx-3
 

Hello, I bought a mx-3 that is a racecar. It still has the 4-lug wheels, and I would like to update the car with 5-lugs and bigger brakes.
The car has a 2.5 v6 from a mx6. I was hoping the mx6/626 hubs and spindles would fit, but seems they will not from my searching.
My searching did not lead to any simple oem/junkyard swap to get 5-lugs, can anyone help me out here?