1973 Motobecane Mirage what tools do i need?

Hello so Ive a 1973 Motobecane Mirage, I just put on new tubes and tires, all the bearings seem to be in tact no wiggle anywhere. I would like to overhaul it and Ive never worked on a bike this old. Also Im having some difficulty figuring out how to replace the bottom bracket, like if its swiss or...